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Ultra High Speed Memory Card

The SanDisk Extreme SDXC 256GB UHS-I memory card is a high capacity card that shoots faster with read speeds of up to 150 MB/s and write speeds up to 70 MB/s. Unlock the full potential of your camera’s stills and video capabilities with the SanDisk Extreme 128GB card.

Supports Ultra HD 4K Footage

The Ultra High Speed (UHS-I) bus architecture ensures that the card performs to rigorous performance standards at all times. The high 256GB capacity coupled with UHS Class 3 recording speeds enables uninterrupted high resolution video capture with your DSLR or HD video camera. With a capable device, the card supports Ultra HD 4K footage capture.

V30 Video Class Speed Rating

The V30 classification build on previous SD classifications, ensuring that cards with the V30 rating are guaranteed to deliver a minimum of 30 MB/sec write speed. This means you can be confident that your card can keep up with the incredible video resolutions possible today as well as being prepared for future developments and innovation.

Minimise Waiting Times

Fast read speeds minimise waiting time while data is rapidly transferred back to your computer letting you jump into post-production sooner.

Improved Data Integrity and Reliability

The card features Advanced Wear Levelling and an Error Correction Code engine which improves overall data integrity and reliability of the card during read and write operations.

Perfect for Burst Shooting

The memory card lets you experience RAW + JPEG continuous burst mode shooting and capture fast-action Full HD video like never before. For capturing Full HD video or that professional shot, trust SanDisk Extreme SDXC UHS-I U3 Class 10 256GB memory cards for your DSLR or HD camcorder.

Form factor


Storage Capacity

256 GB


Up to 150MB/s read, up to 70MB/s write speed and minimum write speed 30MB/s


Temperature proof, water proof, shock proof and x-ray proof

Card dimension

24 mm x 32 mm x 2.1 mm

Operating temperature

-25°C to 85°C

Storage temperature

-40°C to 85°C


Compatible with all SDHC/SDXC and SDHC-I/SDXC-I (UHS-I) enabled host devices


Built-in write-protect switch prevents accidental data loss

* Specifications subject to change by the manufacturer without notice

SanDisk Extreme 256GB SDXC UHS-I U3 Class 10 4k 150MB/s Memory Card


* Dispatch timeframes are indications only and may vary for multiple quantities. Timeframes are updated regularly during normal business hours.