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SanDisk

SanDisk 256GB Extreme PRO SDXC UHS-II Memory Card - C10, U3, V90, 8K, 4K, Full HD Video, SD Card - SDSDXDK-256G-GN4IN

  • Based on 3,971 reviews
Condition: New
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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Aug 2 – Aug 6
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Style: Card Only


Capacity: 256GB


Features

  • Tap into pro performance designed for professional and advanced photographers and videographers.
  • Super-fast write speeds of up to 260MB/s* help rapidly clear buffer time to support continuous burst mode shooting and cinema-quality video recording(2). Requires compatible devices capable of reaching such speeds.
  • Sustained V90 video speeds and UHS Speed Class 3 (U3) deliver cinema-quality 8K, 4K and Full HD video recording.(1)(2)
  • Extreme transfer speeds up to 300MB/s* help achieve maximum postproduction workflow efficiency. Requires compatible devices capable of reaching such speeds such as the SanDisk Extreme PRO SD UHS-II USB-C Reader (sold separately).
  • Travel from studio to location worry-free with shockproof, temperature-proof, waterproof, and X-ray-proof design.(5)

Description

Capture every one-shot moment in stunning cinema-quality 8K, 4K, and Full HD(2) video with a super-fast SD memory card.

Brand: SanDisk


Model Name: SDSDSDXDK256G


Flash Memory Type: SDXC


Memory Storage Capacity: 256 GB


Compatible Devices: Camera


Color: ‎Dark gray/Black


Special Feature: ‎X Ray Proof, Temperature Proof


Read Speed: ‎300 Megabytes Per Second


Product Dimensions: ‎0.94"D x 1.25"W x 0.08"H


Item Weight: ‎0.23 Grams


Warranty Type: ‎No Warranty


Write Speed: ‎260 MB/s


Hardware Interface: ‎microSDXC


Secure Digital Association Speed Class: ‎Class 10


Product Dimensions: ‎1.26"L x 0.94"W


Manufacturer: ‎Western Digital Technologies, Inc.


UPC: ‎619659186678


Item model number: ‎SDSDXDK-256G-GN4IN


Item Weight: ‎0.008 ounces


Item Dimensions LxWxH: ‎0.09 x 0.94 x 1.26 inches


Country of Origin: ‎Taiwan


Date First Available: ‎June 24, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 2 – Aug 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Elevate Your Media Game with the SanDisk 512GB Extreme PRO SDXC UHS-II Memory Card
Style: Card Only Capacity: 512GB
As a content creator pushing the boundaries of visual storytelling, I recently integrated the SanDisk 512GB Extreme PRO SDXC UHS-II Memory Card into my workflow, and the results have been nothing short of extraordinary. This memory card is a powerhouse, delivering unparalleled performance and reliability for high-resolution photo and video capture. The standout feature of the Extreme PRO UHS-II card is its cutting-edge UHS-II technology, providing blazing-fast read and write speeds. With a UHS Speed Class 3 (U3) rating and Video Speed Class 90 (V90) certification, this memory card is optimized for professional-grade video recording, including 8K content. The rapid data transfer speeds ensure that I can capture and transfer large files seamlessly, allowing me to focus on the creative process without delays. For videographers working with the latest 8K and 4K cameras, the Extreme PRO SDXC UHS-II card is a game-changer. Its V90 rating guarantees sustained write speeds of up to 90MB/s, providing the necessary bandwidth for capturing high-bitrate video without dropped frames. The card's compatibility with the most demanding video specifications makes it an essential tool for those who demand uncompromising quality in their cinematic productions. With a generous 512GB of storage space, the Extreme PRO UHS-II card allows me to shoot for extended periods without constantly worrying about running out of storage. This capacity is particularly valuable when working on projects that require extensive coverage or when shooting in RAW format, where file sizes can be substantial. Built for the rigors of professional use, the Extreme PRO UHS-II card is shockproof, temperature-proof, waterproof, and X-ray proof. This robust design ensures that my valuable content remains safe, even in challenging shooting environments. The durability of the card adds a layer of confidence, knowing that it can withstand the demands of my dynamic and sometimes unpredictable work settings. The memory card's compatibility with UHS-II devices contributes to a more efficient workflow. When used with a UHS-II card reader, the transfer of large files to my computer is remarkably swift, minimizing the time spent waiting for data to transfer and allowing me to move seamlessly between shooting and editing. In conclusion, the SanDisk 512GB Extreme PRO SDXC UHS-II Memory Card is a powerhouse solution for professional content creators working with high-resolution photo and video content. Its UHS-II technology, generous storage capacity, and robust build quality make it an indispensable tool for those who demand the best in performance and reliability. Whether you're capturing stunning landscapes, cinematic masterpieces, or high-action sports, this memory card is a key component in elevating your creative process and ensuring that you never miss a moment. ... show more
Reviewed in the United States on November 23, 2023 by dubs
    • Great Write Speed
Style: Card Only Capacity: 128GB
I only trust SanDisk cards in my Nikon D780. I ordered this one so that I would have another one for an upcoming trip to Alaska. These are good quality, work well, and reasonably priced. The storage capacity and write speed are both excellent. It gives me excellent photo quality.
Reviewed in the United States on April 21, 2025 by KMG365
    • Must have UHS-II device or adapter for full performance
Style: Card Only Capacity: 128GB
My application is photography, specifically with an OM-5 camera. The cards are used to move batches of images between the camera and computers, or as a temporary backup. I'm mainly interested in out-of-camera speeds. I'm not too concerned with shooting at the maximum burst rate, which could be affected by SD card choice. Does it work as advertised? Yes. Would I buy it again in the same circumstances? No. I would buy the SanDisk Extreme Pro 200 MB/s card for $21 rather than this one at the Prime Day price of $85, and certainly at the after-sale price of $110. I did quite a few tests copying the same directory of RAW and JPEG files between various devices. There were 1,758 files in 37 folders. There were also a few small video files, but mostly 7 to 9 MB JPEGs and 17 to 28 MB RAW files. As a reference point, I copied from a SanDisk external SSD to my desktop's internal SSD, getting 780 MB/s. This simply shows that the USB-C port and the internal SSD would not be limiting factors. The USB 3.0 ports I used should also be more than adequate, rated at 625 MB/s or higher. Below I will omit the differences between my computer's USB-C and USB 3.0 ports, which I tested both at the front panel and using the backside mother-board mounted ports. This differences were small. Back to the title - I mentioned adapters. To use the speed of this new card effectively, I had to get a UHS-II compatible adapter. It was the JJC device here on Amazon of $18.99: https://www.amazon.com/dp/B09T63PQ1W With this and the new card I got read speeds of 224 to 238 MB/s and write speeds of 79 to 87 MB/s. The read speed was around 78% of advertised, which is not bad for so many separate files. Write speed was only 31% of advertised, rather disappointing. Do you need the special adapter? Yes, if speed is important. With an Anker adapter which supports UHS-I I got read speeds around 76 MB/s with this card, much less than the 230 or so with UHS-II. Write speeds were about 45 MB/s, not much over half of the UHS-II speed. Why would I buy the slower UHS-I SanDisk card (https://www.amazon.com/SanDisk-128GB-Extreme-UHS-I-Memory/dp/B09X7FXHVJ/)? It is a $20 card and I got write speeds 74 MB/s with the JJC adapter and 55 MB/s with the Anker adapter. With the JJC adapter the UHS-II card was only slightly faster, and with the Anker adapter it was significantly slower. Read speeds went like this. The UHS-I card gave 154 MB/s compared to 230 for the UHS-II card, which is a nice advantage for the subject of this review. To me it is not worth more than 5 times the price for 1.5 times the speed. That was with the faster UHS-II adapter. With the Anker adapter read speeds were practically identical and write speeds were actually better with the Anker. I did test with one other card, an older 45 MB/s card. I gave over 90% of advertised speed with reading, better than the newer cards. Writing was 50 to 54% of advertised. Adapter type did not matter much. These are now down to $12.18, but I'd probably stick with the 200 MB/s cards ... show more
Reviewed in the United States on July 27, 2024 by Steve in Monterey
    • Great for uploading and convenient for the space
Style: Card Only Capacity: 128GB
This 128GB SD card is perfect. It has tons of storage for all my videos (I’m a wedding videographer), and it’s super easy to upload everything to my laptop for editing. The transfer speed is fast, which saves me a lot of time. It’s reliable and works great for all my projects—definitely worth it!
Reviewed in the United States on December 23, 2024 by David
    • Nice tool for videos on my camera
Style: Card Only Capacity: 128GB
Works great with my camera! Beautiful photos and videos
Reviewed in the United States on April 23, 2025 by Jimmyb
    • Works like it is supposed to, fast enough for my Sony A7 IV
Style: Card Only Capacity: 256GB
I can shoot very rapidly with this card. I just wish I could find them in a higher capacity.
Reviewed in the United States on July 7, 2025 by DB
    • First one failed
Style: Card Only Capacity: 128GB
I got this card months back and it was a faulty card, fresh out of the box! I did however buy another one and it work out fine and sent the nonfunctional one back. Works great so far!
Reviewed in the United States on December 28, 2024 by Garrett

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