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Full-size SD card in black with red label, 64GB capacity

SanDisk

SanDisk SDSDUNB-064G CVK 64GB Class 10 48MB/s 320x memory card

SKU CH-DJG0-N8AFX

64 GB full-size SDHC card rated Class 10 with 48 MB/s read speed and 320x rating for cameras and portable devices

  • TypeSecure Digital High-Capacity (SDHC)
  • Card typeFull Size SD
  • Capacity64GB
  • Speed Class RatingClass 10
  • 64 GB capacity stores thousands of photos and videos
  • Class 10 rating guarantees minimum 10 MB/s write speed for smooth recording
  • UHS-I interface delivers up to 48 MB/s transfer rate for quick offloads
  • 320× speed multiplier means fast burst shooting and file copying
  • Standard full-size SD form factor fits cameras, laptops and card readers

64 GB SDXC card for portable devices

This SanDisk Ultra SDXC card delivers 64 GB of storage in the standard full-size SD form factor. It carries a Class 10 speed rating for sustained write performance. The card targets users of digital cameras, camcorders, smartphones and other portable electronics that accept SDXC media. Bulk packaging keeps the focus on the card itself.

UHS-I interface limited to 48 MB/s read

The card operates on the UHS-I bus with a maximum read speed of 48 MB/s. Write speeds are governed by the Class 10 minimum of 10 MB/s. Devices that only support the older high-speed bus will fall back to lower transfer rates. The 320x rating reflects the peak read figure, not sustained throughput.

Verify SDXC support and UHS-I slot before ordering

Check that your host device explicitly supports SDXC capacity cards, not just SDHC. Confirm the slot can utilise UHS-I speeds to benefit from the 48 MB/s read rate. The card includes a mechanical write-protect switch on the casing. Ensure your device firmware recognises cards of this capacity class.

Highlights

  • 64 GB capacity stores thousands of photos and videos
  • Class 10 rating guarantees minimum 10 MB/s write speed for smooth recording
  • UHS-I interface delivers up to 48 MB/s transfer rate for quick offloads
  • 320× speed multiplier means fast burst shooting and file copying
  • Standard full-size SD form factor fits cameras, laptops and card readers

Specifications

BrandSanDisk
TypeSecure Digital High-Capacity (SDHC)
Card typeFull Size SD
Capacity64GB
Speed Class RatingClass 10

Questions about this item

Should I pick the 64 GB version or a larger capacity?

This listing is for the 64 GB card only; if you need more space you would have to choose a different model.

What does the 48 MB/s figure mean when I put the card in my camera?

The 48 MB/s rating is the maximum read speed the card can deliver; actual throughput will depend on the device and file sizes.

How does the UHS-I interface affect real-world speed?

The card uses a UHS-I bus, so its peak transfer rate is bound by that interface specification.

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