SD, microSD and CFexpress memory cards for cameras, phones, dash cams, action cameras and other compatible devices, available in a range of capacities and speed classes.
Flash Cards
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SanDisk
The SanDisk Ultra 1TB microSDXC is a removable flash memory card with 1TB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U1, A1. Maximum read speed is rated at 120 MB/s; no separate maximum write figure is claimed. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 1TB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSQUA4-1T00-GN6MA Capacity 1TB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U1 Application Performance Class A1 Max Read Speed Up to 120 MB/s
£195.00
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SanDisk
The SanDisk Extreme PRO 64GB microSDXC is a removable flash memory card with 64GB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U3, V30, A2. Maximum read speed is rated at 200 MB/s and maximum write speed at 90 MB/s. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 64GB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSQXCU-064G-GS6MA Capacity 64GB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Video Speed Class V30 Application Performance Class A2 Max Read Speed Up to 200 MB/s Max Write Speed Up to 90 MB/s
£36.00 £30.00
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SanDisk
The SanDisk Extreme 32GB is a SDHC memory card using the UHS-I interface. This exact SKU carries the Class 10 U3 V30 ratings. Manufacturer-rated transfer performance reaches up to 100 MB/s read and 60 MB/s write, while the 32GB capacity provides removable flash storage.Class 10 identifies the conventional SD speed-class tier; U3 is the UHS Speed Class 3 rating; and V30 is its Video Speed Class. These markings are separate specifications and should not be substituted for one another. V30 is the confirmed Video Speed Class, while U3 is the UHS Speed Class.Actual transfer rates depend on the host device, file pattern and workload, so quoted maximum figures are best treated as the card's rated ceiling rather than a guaranteed result in every system. Host equipment must support the same card format and, where applicable, the same bus standard to make use of the stated performance profile. The combination of capacity, format, interface and confirmed class markings is what distinguishes this exact model from neighbouring capacities and earlier or later revisions.The specification deliberately separates read speed, write speed and class markings because each describes a different aspect of card performance. Brand SanDisk Model SDSDXVT-032G-GNCIN Capacity 32GB Card Format SD Card Standard SDHC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Video Speed Class V30 Max Read Speed Up to 100 MB/s Max Write Speed Up to 60 MB/s Colour Black/Gold
£22.00
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Toshiba
The Toshiba EXCERIA M203 256GB microSDXC is a removable flash memory card with 256GB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader. Confirmed performance markings are Class 10, U1. Maximum read speed is rated at 100 MB/s; no separate maximum write figure is claimed. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system. The 256GB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand Toshiba Model THN-M203K2560EA Capacity 256GB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U1 Max Read Speed Up to 100 MB/s
£39.00
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SanDisk
The SanDisk Extreme 2TB microSDXC is a removable flash memory card with 2TB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U3, V30, A2. Maximum read speed is rated at 240 MB/s and maximum write speed at 140 MB/s. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 2TB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSQXAV-2T00-GN6MA Capacity 2TB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Video Speed Class V30 Application Performance Class A2 Max Read Speed Up to 240 MB/s Max Write Speed Up to 140 MB/s
£319.00 £310.00
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SanDisk
The SanDisk Ultra 128GB is a SDXC memory card using the UHS-I interface. This exact SKU carries the Class 10 U1 ratings. Manufacturer-rated read performance reaches up to 140 MB/s, while the 128GB capacity provides removable flash storage without inventing an unconfirmed maximum write figure.Class 10 identifies the conventional SD speed-class tier; and U1 is the UHS Speed Class 1 rating. These markings are separate specifications and should not be substituted for one another.Actual transfer rates depend on the host device, file pattern and workload, so quoted maximum figures are best treated as the card's rated ceiling rather than a guaranteed result in every system. Host equipment must support the same card format and, where applicable, the same bus standard to make use of the stated performance profile. The combination of capacity, format, interface and confirmed class markings is what distinguishes this exact model from neighbouring capacities and earlier or later revisions.The specification deliberately separates read speed, write speed and class markings because each describes a different aspect of card performance. Brand SanDisk Model SDSDUNB-128G-GN6IN Capacity 128GB Card Format SD Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U1 Max Read Speed Up to 140 MB/s Colour Black
£29.00 £26.48
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SanDisk
The SanDisk Extreme PRO 128GB microSDXC is a removable flash memory card with 128GB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U3, V30, A1. Maximum read speed is rated at 100 MB/s and maximum write speed at 90 MB/s. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 128GB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSQXCG-128G-GN6MA Capacity 128GB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Video Speed Class V30 Application Performance Class A1 Max Read Speed Up to 100 MB/s Max Write Speed Up to 90 MB/s
£46.00 £41.00
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Samsung
The Samsung EVO Select 128GB microSDXC is a removable flash memory card with 128GB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U3. Maximum read speed is rated at 100 MB/s and maximum write speed at 90 MB/s. This version includes an SD adapter for use in a compatible full-size SD slot. Confirmed protection covers water, temperature, X-rays and magnetic fields. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 128GB capacity is useful for keeping more files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand Samsung Model MB-ME128HA/AM Capacity 128GB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Max Read Speed Up to 100 MB/s Max Write Speed Up to 90 MB/s Colour Green/White
£44.00 £39.00
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Kingston
The Kingston Canvas React 256GB is a SDXC memory card using the UHS-I interface. This exact SKU carries the Class 10 ratings. Manufacturer-rated read performance reaches up to 100 MB/s, while the 256GB capacity provides removable flash storage without inventing an unconfirmed maximum write figure.Class 10 identifies the conventional SD speed-class tier. These markings are separate specifications and should not be substituted for one another.Actual transfer rates depend on the host device, file pattern and workload, so quoted maximum figures are best treated as the card's rated ceiling rather than a guaranteed result in every system. Host equipment must support the same card format and, where applicable, the same bus standard to make use of the stated performance profile. The combination of capacity, format, interface and confirmed class markings is what distinguishes this exact model from neighbouring capacities and earlier or later revisions.The specification deliberately separates read speed, write speed and class markings because each describes a different aspect of card performance. Brand Kingston Model SDR/256GB Capacity 256GB Card Format SD Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 Max Read Speed Up to 100 MB/s Colour Black
£119.00 £99.00
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Kingston
The Kingston Canvas Go! 512GB is a SDXC memory card using the UHS-I interface. This exact SKU carries the Class 10 U3 V30 ratings. Manufacturer-rated transfer performance reaches up to 90 MB/s read and 45 MB/s write, while the 512GB capacity provides removable flash storage.Class 10 identifies the conventional SD speed-class tier; U3 is the UHS Speed Class 3 rating; and V30 is its Video Speed Class. These markings are separate specifications and should not be substituted for one another. V30 is the confirmed Video Speed Class, while U3 is the UHS Speed Class.Actual transfer rates depend on the host device, file pattern and workload, so quoted maximum figures are best treated as the card's rated ceiling rather than a guaranteed result in every system. Host equipment must support the same card format and, where applicable, the same bus standard to make use of the stated performance profile. The combination of capacity, format, interface and confirmed class markings is what distinguishes this exact model from neighbouring capacities and earlier or later revisions.The specification deliberately separates read speed, write speed and class markings because each describes a different aspect of card performance. Brand Kingston Model SDG/512GB Capacity 512GB Card Format SD Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Video Speed Class V30 Max Read Speed Up to 90 MB/s Max Write Speed Up to 45 MB/s Colour Black
£89.00
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SanDisk
The SanDisk Extreme PRO 128GB is a SDXC memory card using the UHS-I interface. This exact SKU carries the Class 10 U3 V30 ratings. Manufacturer-rated transfer performance reaches up to 250 MB/s read and 120 MB/s write, while the 128GB capacity provides removable flash storage.Class 10 identifies the conventional SD speed-class tier; U3 is the UHS Speed Class 3 rating; and V30 is its Video Speed Class. These markings are separate specifications and should not be substituted for one another. V30 is the confirmed Video Speed Class, while U3 is the UHS Speed Class.Actual transfer rates depend on the host device, file pattern and workload, so quoted maximum figures are best treated as the card's rated ceiling rather than a guaranteed result in every system. Host equipment must support the same card format and, where applicable, the same bus standard to make use of the stated performance profile. The combination of capacity, format, interface and confirmed class markings is what distinguishes this exact model from neighbouring capacities and earlier or later revisions.The specification deliberately separates read speed, write speed and class markings because each describes a different aspect of card performance. Brand SanDisk Model SDSDXXJ-128G-GSCIN Capacity 128GB Card Format SD Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Video Speed Class V30 Max Read Speed Up to 250 MB/s Max Write Speed Up to 120 MB/s Colour Black/Gold
£55.00
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Transcend
The Transcend Premium 64GB microSDXC is a removable flash memory card with 64GB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U1. Maximum read speed is rated at 90 MB/s; no separate maximum write figure is claimed. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 64GB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand Transcend Model TS64GUSDU1 Capacity 64GB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U1 Max Read Speed Up to 90 MB/s
£29.00 £24.00
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Kingston
The Kingston microSDHC 16GB microSDHC is a removable flash memory card with 16GB of nominal storage. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 4. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 16GB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDHC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand Kingston Model SDC4/16GB Capacity 16GB Card Format microSDHC Card Standard SDHC Speed Class Class 4
£17.00 £13.99
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SanDisk
The SanDisk Ultra 200GB microSDXC is a removable flash memory card with 200GB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U1, A1. Maximum read speed is rated at 100 MB/s; no separate maximum write figure is claimed. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 200GB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSQUAR-200G-GN6MA Capacity 200GB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U1 Application Performance Class A1 Max Read Speed Up to 100 MB/s
£53.00 £38.50
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SanDisk
The SanDisk Extreme PRO 1TB microSDXC is a removable flash memory card with 1TB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U3, V30, A2. Maximum read speed is rated at 200 MB/s and maximum write speed at 140 MB/s. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 1TB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSQXCD-1T00-GN6MA Capacity 1TB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Video Speed Class V30 Application Performance Class A2 Max Read Speed Up to 200 MB/s Max Write Speed Up to 140 MB/s
£249.00
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Transcend
The Transcend Ultimate 128GB is a SDXC memory card using the UHS-I interface. This exact SKU carries the Class 10 U3 ratings. Manufacturer-rated transfer performance reaches up to 95 MB/s read and 60 MB/s write, while the 128GB capacity provides removable flash storage.Class 10 identifies the conventional SD speed-class tier; and U3 is the UHS Speed Class 3 rating. These markings are separate specifications and should not be substituted for one another.Actual transfer rates depend on the host device, file pattern and workload, so quoted maximum figures are best treated as the card's rated ceiling rather than a guaranteed result in every system. Host equipment must support the same card format and, where applicable, the same bus standard to make use of the stated performance profile. The combination of capacity, format, interface and confirmed class markings is what distinguishes this exact model from neighbouring capacities and earlier or later revisions.The specification deliberately separates read speed, write speed and class markings because each describes a different aspect of card performance. Brand Transcend Model TS128GSDU3 Capacity 128GB Card Format SD Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Max Read Speed Up to 95 MB/s Max Write Speed Up to 60 MB/s Colour Black
£35.00
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SanDisk
The SanDisk Extreme 64GB microSDXC is a removable flash memory card with 64GB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U3, V30, A2. Maximum read speed is rated at 170 MB/s and maximum write speed at 80 MB/s. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 64GB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSQXAH-064G-GN6MA Capacity 64GB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Video Speed Class V30 Application Performance Class A2 Max Read Speed Up to 170 MB/s Max Write Speed Up to 80 MB/s
£30.00
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SanDisk
The SanDisk Ultra 1TB microSDXC is a removable flash memory card with 1TB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U1, A1. Maximum read speed is rated at 150 MB/s; no separate maximum write figure is claimed. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 1TB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSQUAC-1T00-GN6MA Capacity 1TB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U1 Application Performance Class A1 Max Read Speed Up to 150 MB/s
£165.00
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SanDisk
The SanDisk Extreme PRO 400GB microSDXC is a removable flash memory card with 400GB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U3, V30, A2. Maximum read speed is rated at 170 MB/s; no separate maximum write figure is claimed. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 400GB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSQXCZ-400G-GN6MA Capacity 400GB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Video Speed Class V30 Application Performance Class A2 Max Read Speed Up to 170 MB/s
£109.00
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SanDisk
The SanDisk Extreme PRO 512GB microSDXC is a removable flash memory card with 512GB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U3, V30, A2. Maximum read speed is rated at 200 MB/s and maximum write speed at 140 MB/s. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 512GB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSQXCD-512G-GN6MA Capacity 512GB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Video Speed Class V30 Application Performance Class A2 Max Read Speed Up to 200 MB/s Max Write Speed Up to 140 MB/s
£126.00
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SanDisk
The SanDisk Ultra 400GB microSDXC is a removable flash memory card with 400GB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U1, A1. Maximum read speed is rated at 100 MB/s; no separate maximum write figure is claimed. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 400GB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSQUAR-400G-GN6MA Capacity 400GB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U1 Application Performance Class A1 Max Read Speed Up to 100 MB/s
£95.00 £79.00
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SanDisk
The SanDisk Ultra 512GB microSDXC is a removable flash memory card with 512GB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U1, A1. Maximum read speed is rated at 120 MB/s; no separate maximum write figure is claimed. This version includes an SD adapter for use in a compatible full-size SD slot. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 512GB capacity is useful for keeping larger collections of files on one removable card without changing the physical microSDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSQUA4-512G-GN6MA Capacity 512GB Card Format microSDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U1 Application Performance Class A1 Max Read Speed Up to 120 MB/s
£112.00 £90.00
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SanDisk
The SanDisk Extreme 512GB is a SDXC memory card using the UHS-I interface. This exact SKU carries the Class 10 U3 V30 ratings. Manufacturer-rated transfer performance reaches up to 180 MB/s read and 130 MB/s write, while the 512GB capacity provides removable flash storage.Class 10 identifies the conventional SD speed-class tier; U3 is the UHS Speed Class 3 rating; and V30 is its Video Speed Class. These markings are separate specifications and should not be substituted for one another. V30 is the confirmed Video Speed Class, while U3 is the UHS Speed Class.Actual transfer rates depend on the host device, file pattern and workload, so quoted maximum figures are best treated as the card's rated ceiling rather than a guaranteed result in every system. Host equipment must support the same card format and, where applicable, the same bus standard to make use of the stated performance profile. The combination of capacity, format, interface and confirmed class markings is what distinguishes this exact model from neighbouring capacities and earlier or later revisions.The specification deliberately separates read speed, write speed and class markings because each describes a different aspect of card performance. Brand SanDisk Model SDSDXVV-512G-GNCIN Capacity 512GB Card Format SD Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Video Speed Class V30 Max Read Speed Up to 180 MB/s Max Write Speed Up to 130 MB/s Colour Black/Gold
£132.00 £125.00
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SanDisk
The SanDisk Extreme PRO 64GB SDXC is a removable flash memory card with 64GB of nominal storage using the UHS-I bus. The exact format, capacity and interface are stated together so this version can be distinguished from other cards in the same product family and matched to a compatible host or reader.Confirmed performance markings are Class 10, U3, V30. Maximum read speed is rated at 170 MB/s and maximum write speed at 90 MB/s. Speed-class markings and maximum transfer figures are kept separate because they describe different parts of the performance specification. Actual throughput can vary with the host device, reader, file pattern and workload, so published maximum speeds are not guaranteed in every system.The 64GB capacity is useful for keeping larger collections of files on one removable card without changing the physical SDXC format. A compatible device must support the stated card format and, where applicable, the stated bus generation; an older reader can limit available performance. Usable capacity shown by an operating system can be slightly lower than the nominal figure because of unit calculations and formatting overhead. Brand SanDisk Model SDSDXXY-064G-GN4IN Capacity 64GB Card Format SDXC Card Standard SDXC Bus / Interface UHS-I Speed Class Class 10 UHS Speed Class U3 Video Speed Class V30 Max Read Speed Up to 170 MB/s Max Write Speed Up to 90 MB/s
£33.00 £32.00
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