ADATA XPG SDXC UHS-1 U3 Card Review (64GB)

With all the new Ultra HD (4K2K) video cameras coming out to the market such as the Canon 1-D C and Panasonic Lumix GH4,  media professionals need faster writing and larger capacity memory cards. While normal UHS-I U1 and Class 10 cards are fine for normal 1080p HD video recording, a minimum write speed of 10MB/s doesn’t cut it for 4K video. Media professionals need UHS-I U3 rated cards or better to record seamlessly without lag or degradation of performance. UHS-I speed class 3 cards deliver a sustained write speed of at least 30MB/s.


The ADATA XPG SDXC UHS-I U3 card delivers the goods. It is their highest performing SD card and it supports the latest 4K2K and 3D recording modes of the latest digital cameras and camcorders. With up to 95MB/s read and 85MB/s write speeds, it allows for the continuous capture and transfer of large amounts of video/image data quickly and without interruption.


  • 64GB Capacity
  • USH-I Speed Class U3 compliant
  • Compatible with SDXC Card and SDXC USH-I Card enabled host devices
  • Seq. Read/Write speed up to 95/85MB/s
  • Working Voltage: 2.7V ~ 3.6V
  • Weight: 2 grams
  • Water, Shock, Magnet, and X-Ray Proof
  • Operation temperature: -25C to 85C
  • Supports exFAT file system
  • Compatible with SDXC Card and SDXC USH-I Card enabled host devices
  • Supports the SDA 3.0 standard
  • FCC, CE, BSMI, VCCI compliant
  • Standard 24 x 32 x 2.1mm (LxWxH) SD Card Dimensions
  • Mechanical Write Protection Switch
  • Limited Lifetime Warranty


The card comes in a small plastic clamp shell in a perforated cardboard package. The front and states all of the card’s specifications such as the 64GB capacity and the rated speeds. The back reveals a small chart in the top left stating the approximate amount of images and video one can record with the card. For example, it can hold up to 5740 24MP images or up to 80 minutes of 100Mbps 4K video. Also, there is a QR code that brings you the ADATA website where you can register your card for the full lifetime warranty and download free software utilities.

ADATA XPG 64GB Package FrontADATA XPG 64GB Package Back

Out of the packaging, the card itself is a basic blue case with a shiny gold sticker as any top end card should. Rated speeds and compatibility are listed on it as well.


The back of the card seems to have a serial number on it; however, it turns out to be a generic number as I have another ADATA SDXC card with the same number code on the back of it as well.

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