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Black SDXC memory card labelled 256GB UHS-I U3 V30

ADATA

ADATA Premier Pro 256GB SDXC UHS-I U3 V30 memory card

SKU CH-SK8Z-WSSQ7

256 GB SDXC UHS-I U3 V30 card with up to 100 MB/s read and 85 MB/s write for 4K video and burst photography

  • TypeSecure Digital (SD)
  • Capacity256GB
  • 256 GB capacity stores thousands of high-resolution images
  • UHS-I U3 interface enables rapid burst-mode shooting
  • V30 rating guarantees sustained 4K video recording
  • Read speed up to 100 MB/s cuts file-transfer time
  • Write speed up to 85 MB/s keeps continuous capture smooth

Professional 4K capture card

The ADATA Premier Pro is a 256GB SDXC memory card rated UHS-I U3 and V30 for sustained write performance. It targets photographers and videographers who need reliable storage for high-end DSLR, mirrorless and 4K cameras. Read speeds reach 100MB/s while writes hit 85MB/s.

Upgrade from slower Class 10 cards

This card replaces standard Class 10 media that cannot guarantee the 30MB/s minimum write speed required for 4K recording. The jump is worth it when shooting long burst sequences or extended Ultra HD clips where buffer clearing and drop-free capture matter. Older U1 cards will bottleneck these workflows.

Simple slot installation

Installation is a direct insert into any SDXC-compatible slot; no drivers or formatting tools are required beyond the camera's own menu. The main pitfall is using the card in a legacy SDHC reader or pre-UHS host, which caps performance at lower speeds and can cause recording failures.

Highlights

  • 256 GB capacity stores thousands of high-resolution images
  • UHS-I U3 interface enables rapid burst-mode shooting
  • V30 rating guarantees sustained 4K video recording
  • Read speed up to 100 MB/s cuts file-transfer time
  • Write speed up to 85 MB/s keeps continuous capture smooth

Specifications

TypeSecure Digital (SD)
Capacity256GB

Questions about this item

What SD slot size does this 256GB card require?

It fits a standard full-size SDXC slot in cameras, drones, or card readers; microSD adapters are not needed.

How do I prepare the card before first use, and what step is often missed?

Insert the card, then format it in the camera menu using the SDXC file system so the V30 rating is recognised for 4K recording.

When should I replace this card to keep write speeds at 85MB/s?

Replace it if sustained write speed drops below 30MB/s, if errors appear during 4K capture, or after heavy cycle counts.

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