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A small rectangular SDXC memory card with a black front label and grey sides, showing 256GB capacity and 100MB/s read speed markings

SanDisk

SanDisk 256GB Ultra SDXC memory card UHS-I U1 Class 10 100MB/s

SKU CH-1XSK-MZRJQ

Stores 256GB of photos and Full HD 1080p video with read speeds up to 100 MB/s and UHS-I U1 Class 10 performance

  • TypeSecure Digital Extended Capacity (SDXC)
  • 256 GB capacity stores thousands of photos and Full HD videos
  • Read speeds up to 100 MB/s transfer files quickly
  • UHS-I U1 Class 10 rating records smooth 1080p Full HD video
  • Water shock temperature and X-ray proof protects data in harsh conditions
  • Built-in write-protect switch prevents accidental file deletion

256 GB SDXC card for Full HD capture

The SanDisk Ultra SDXC memory card provides 256 GB of storage for compact and mid-range point-and-shoot cameras. It carries a UHS Speed Class 1 and Class 10 rating, making it suitable for recording Full HD 1080p video as well as raw and JPEG photography. A built-in write-protect switch helps safeguard stored content from accidental erasure. The card is rated water, shock, X-ray and temperature proof for data protection in extreme conditions.

Sustained write performance for video recording

Minimum write speed is specified at 10 MB/s, meeting the U1 and Class 10 thresholds required for continuous Full HD 1080p recording. Read speeds reach up to 100 MB/s for faster offloading of photos and footage to a computer. The UHS-I interface supports these transfer rates during extended shooting sessions. Performance remains consistent within the U1 class limits throughout the card's capacity.

Verify host device compatibility before purchase

Confirm your camera or device supports the SDXC standard and UHS-I speeds to utilise the full 256 GB capacity and rated transfer rates. Devices limited to SDHC may not recognise the full capacity of this card. Check that your equipment can write at a sustained 10 MB/s for uninterrupted Full HD video capture. The card weighs 0.05 lbs and fits standard SD card slots.

Highlights

  • 256 GB capacity stores thousands of photos and Full HD videos
  • Read speeds up to 100 MB/s transfer files quickly
  • UHS-I U1 Class 10 rating records smooth 1080p Full HD video
  • Water shock temperature and X-ray proof protects data in harsh conditions
  • Built-in write-protect switch prevents accidental file deletion

Specifications

TypeSecure Digital Extended Capacity (SDXC)

Questions about this item

Does the card generate noticeable heat or draw extra power when recording 1080p video all day?

The card is rated for continuous Full HD 1080p capture and is temperature proof, so it handles extended use without overheating or excessive power draw.

My camera only has a standard SD slot — will this 256GB SDXC card work without an adapter?

Yes, the card uses the standard SDXC form factor and fits directly into any SDXC-compatible slot; no adapter is required.

I still shoot with an older Class 10 camera body — will this U1 card record reliably at its 10 MB/s write speed?

The card carries a Class 10 rating and a minimum write speed of 10 MB/s, matching the requirements of older Class 10 cameras for Full HD recording.

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