Designed for SD devices that can capture Full HD, 3D, and 4K video, as well as raw and burst photography, the 256GB Extreme UHS-I SDXC Memory Card from SanDisk has a capacity of 256GB, is compatible with the UHS-I bus, and features a speed class rating of V30, which guarantees minimum write speeds of 30 MB/s. If your device does not support the V30 standard, this card also supports the U3 standard, which likewise guarantees minimum write speeds of 30 MB/s. Read speeds are supported up to 180 MB/s and write speeds max out at 130 MB/s. A built-in write-protect switch helps to safeguard against the accidental erasure of card data.

While this card has been designed for cameras that are UHS-I / V30 / U3 compatible, it may be used in devices that do not support UHS-I / V30 / U3. However, bear in mind that this card will then default to your device's speed class and bus rating, such as UHS-I and U1, which supports minimum write speeds of 10 MB/s, or Class 10, which also supports minimum write speeds of 10 MB/s.

As with most SanDisk cards, this memory card is shockproof, X-ray proof, waterproof, while also being able to withstand temperatures from -13 to 185°F, allowing you to take this card with you into extreme environments, such as snow, deserts, and pools. Should the card's data become compromised, you also benefit from the option to download RescuePRO Deluxe software as well as a limited lifetime warranty.

256GB Storage Capacity    UHS-I / V30 / U3 / Class 10    Max Read Speed: 180 MB/s    Max Write Speed: 130 MB/s    Min Write Speed: 30 MB/s    Records Full HD, 3D, and 4K Video    Built-In Write-Protect Switch

Save time with card offload speeds of up to 180 MB/s powered by SanDisk QuickFlow Technology

Pair with the SanDisk Professional PRO-READER SD and microSD Card Reader to achieve maximum speeds

Write speeds up to 130 MB/s and read speeds up to 180 MB/s

Good for shooting 4K UHD video and sequential burst mode photography

Capture uninterrupted video with UHS Speed Class 3 (U3) and Video Speed Class 30 (V30)

Built for and tested in harsh conditions, this card is resistant to water, shock, X-rays, and temperatures ranging from -13 to 185°F.

Related Questions and Answers

Q: 1. Will this card work with panasonic hc-v800 and canon vixia hf m500?

A: Yes, the SanDisk 256GB Extreme PRO UHS-I SDXC Memory Card will work with the Canon Vixia HF G70 UHD 4K Camcorder and Panasonic HC-V800 Full HD Camcorder.

Q: 2. Does it work with Sony Alpha IV?

A: Yes, the SanDisk 128GB Extreme PRO UHS-I SDXC Memory Card will work in the Sony a7 IV Mirrorless Camera. But if you are shooting action shots like sports one should use a much faster card. And if one is shooting video that is too slow a card. The camera is optimized for UHS II cards and it is better to use this card, https://bhpho.to/2LikPIN.

Q: 3. The 256GB card in the picture states a max speed of 90MB/s, but the specs state 180MB/s max write. Is this product listing accurate?

A: Sorry for the confusion. According to Sandisk's website, the new version of the Sandisk Extreme UHS-I SDXC card does indeed have up to 186MB/s read and up to 130MB/s write speeds, with listed caveats on their website. Product photos have unfortunately not been updated/taken effect yet; please pardon us and we appreciate your understand. For a full specification rundown of the new Extreme SDXC cards, please refer to Sandisk's website their for extensive footnotes.

Q: 4. Will this be good for Sony Rx10 IV?

A: Yes, would make a great camera memory card combo for the Sony RX10 IV unit.

Q: 5. Will this work on a Cannon EOS R5 II?

A: The SanDisk 1TB Extreme PRO UHS-I SDXC Memory Card is compatible with the Canon EOS R5 Mirrorless Camera for shooting single-shot still photos. However, the card is too slow for burst mode and videos.

Q: 6. Does this work on the sony zv-1f?

A: Yes, the following unit will support the following SD/SDHC/SDXC cards [128 GB Maximum]

Q: 7. Does this SD work on my Canon Rebel XSi?

A: Yes, the Rebel xsi adapts to all Memory SD/SDHC memory cards.

Q: 8. Will the SanDisk 256GB UHS-I SDXC work in my Pentax K-70?

A: Yes, the SanDisk 256GB Extreme PRO UHS-I SDXC Memory Card will work in your Pentax K-70. We recommend using 64 GB or 128 GB versions of the card in the K-70.

Q: 9. Will this work for the Nikon d7500? Or what card would you recommend?

A: Yes the SanDisk 256GB Extreme UHS-I SDXC Memory Card will work in a Nikon D7500.

Q: 10. does this work with Sony RX10 iv?

A: The SanDisk 256GB Extreme PRO UHS-I SDXC Memory Card is compatible with the Sony Cyber-shot DSC-RX10 IV Digital Camera.