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SanDisk

SanDisk 256GB Extreme PRO SDXC UHS-I Memory Card - C10, U3, V30, 4K UHD, SD Card - SDSDXXD-256G-GN4IN, Dark gray/Black

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Availability: In Stock.
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Arrives Nov 25 – Dec 22
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Capacity: 256GB


Style: Memory Card Only


Features

  • Save time with card offload speeds of up to 200MB/s powered by SanDisk QuickFlow Technology (Up to 200MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Based on internal testing; performance may be lower depending upon host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. X = 150KB/sec. SanDisk QuickFlow Technology is only available for 64GB, 128GB, 256GB, 512GB and 1TB capacities. 1GB=1,000,000,000 bytes. 1TB=1,000,000,000,000 bytes. Actual user storage less.)
  • Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately)
  • Shot speeds up to 140MB/s (Write speed up to 140MB/s. Based on internal testing; performance may be lower depending upon host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. X = 150KB/sec.)
  • Perfect for shooting 4K UHD video and sequential burst mode photography (Full HD (1920x1080) and 4K UHD (3840 x 2160) video support may vary based upon host device, file attributes and other factors. See HD page on SanDisk site.)
  • UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) (UHS Speed Class 3 designates a performance option designed to support 4K UHD video recording with enabled UHS host devices. UHS Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS enabled host devices. See the SD Associations official website.)

Description

Our most powerful SD UHS-I memory card yet saves you time transferring media with read speeds of up to 200MB/s(1) powered by SanDisk QuickFlow Technology(2). Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately). With shot speeds of up to 140MB/s(1) and UHS speed Class 3 (U3)(4)recording, you’re ready to capture stunning, high-resolution, stutter-free 4K UHD video(3) | (1)Up to 200MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Write speed up to 140MB/s. Based on internal testing; performance may be lower depending upon host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. X = 150KB/sec. (2)SanDisk QuickFlowTechnology is only available for 64GB, 128GB, 256GB, 512GB and 1TB capacities. 1GB=1,000,000,000 bytes. 1TB=1,000,000,000,000 bytes. Actual user storage less. (4)UHS Speed Class 3 designates a performance option designed to support 4K UHD video recording with enabled UHS host devices. UHS Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS enabled host devices. See the SD Association’s official website. (3)Full HD (1920x1080) and 4K UHD (3840 x 2160) video support may vary based upon host device, file attributes and other factors. See HD page on SanDisk site.

Brand: SanDisk


Model Name: SanDisk Extreme PRO SD UHS-I Card


Flash Memory Type: SDXC


Memory Storage Capacity: 256 GB


Compatible Devices: Car Navigation Systems, Computers, Digital Cameras, Home Theatre Devices


Color: ‎Dark gray/Black


Special Feature: ‎Temperature Proof, Water Proof, X Ray Proof


Read Speed: ‎120 Megabytes Per Second


Item Weight: ‎2 Grams


Warranty Type: ‎manufacturer


Write Speed: ‎140 MB per second


Hardware Interface: ‎SDHC


Secure Digital Association Speed Class: ‎Class 10


Product Dimensions: ‎1.26"L x 0.9"W


Manufacturer: ‎Western Digital Technologies, Inc.


UPC: ‎619659188658


Global Trade Identification Number: ‎58


Item model number: ‎SDSDXXD-256G-GN4IN


Item Weight: ‎0.071 ounces


Item Dimensions LxWxH: ‎0.09 x 0.94 x 1.26 inches


Language: ‎English


Date First Available: ‎June 9, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 25 – Dec 22

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

    • Perfect Match for My Canon DSLR
Capacity: 32GB Style: Memory Card Only
This card is a workhorse. Popped it into my Canon DSLR, and it hasn’t hiccupped once. Shooting RAW, rapid bursts, and 1080p video all work flawlessly. The speed is exactly what you need if you don’t want your camera to choke during action shots. I trust SanDisk more than any off-brand card, and this one lives up to its “Extreme PRO” name. Rugged, reliable, and plenty of space for long shoots without swapping cards every 20 minutes. Highly recommend for anyone serious about photography. ... show more
Reviewed in the United States on August 18, 2025 by Danny C.
    • Typical solid SanDisk quality
Capacity: 128GB Style: Memory Card Only
Genuine as far I can tell. Speed ratings are good with speedy downloads and uploads and works perfectly on my camera. Never had issues with data loss with SanDisk memory in the decades I’ve used them for photography. I’ve used a lot of other brands as well and honestly never had issues with any of them but if you find a good price on SanDisk, it’s a no brainer. ... show more
Reviewed in the United States on August 22, 2025 by T. Tozawa
    • great memory card with storage
Capacity: 128GB Style: Memory Card Only
works great, just what I was looking for! best price with amount of storage out there.
Reviewed in the United States on October 12, 2025 by rypie
    • Great Storage, Solid Reliability!
Capacity: 256GB Style: Memory Card Only
I purchased this card specifically for my new camcorder and wanted something both reliable and compatible. The 256GB size is perfect. It provides plenty of space for extended recording sessions without being so large that I’d risk losing everything if a card were to fail. SanDisk is a brand I trust, and this card has lived up to that reputation. I’ve recorded multiple sessions in 4K at 60 fps, and the card easily keeps up with the write speed required. Playback and reviewing footage is smooth thanks to fast read speeds. In fact, the only thing that limits me is the camcorder battery, not the card. Recording in 4K at 60 fps, I usually get two to three hours before the battery runs down, and the card still has plenty of room left. It can handle upwards of five hours at that quality (~15+ hours at 1080p @ 60fps), so if you’re filming a kid’s concert, sports game, or family event, you won’t have to worry about storage. Overall, this is an excellent product and one I’ll continue to rely on. Great balance of capacity, speed, and brand confidence. ... show more
Reviewed in the United States on September 24, 2025 by Brad C
    • Reliable and Fast SD Card
Capacity: 256GB Style: Memory Card Only
This SanDisk Extreme PRO 256GB SD card has worked perfectly for my needs. The speed is impressive, making it ideal for 4K video and high-resolution photos. I have used it extensively and have never experienced issues with reliability or data loss. If you need storage that’s both fast and dependable, this card is an excellent choice. Highly recommended! ... show more
Reviewed in the United States on September 18, 2025 by N Bermudez
    • Great card for a great price!
Capacity: 32GB Style: Memory Card Only
These are perfect for regular photography cameras, outdoor cameras, trail, cameras, etc. I have several of these. I have had no issues. Ease of installation depending on the product has been easy. I’ve used these intro, cameras, and my regular photography cameras. Definitely recommend
Reviewed in the United States on August 30, 2025 by Jessica
    • Works but I can't use it
Capacity: 128GB Style: Memory Card Only
I got this hoping I could use it on my 3DS but it has too much storage so its "too new" but otherwise it it very high quality but it isn't supported by a lot of devices anymore because of micro SD and the transfer speed is fast but its good for the price.
Reviewed in the United States on September 28, 2025 by Brennan Twombly
    • Fast and reliable
Capacity: 128GB Style: Memory Card Only
This memory card has been a solid performer in my camera and video gear—especially during resort events and motorhome travels. The speed is impressive, handling 4K footage and burst shots without a hiccup, and the 128GB capacity means I can capture full dance nights without swapping cards. It’s rugged enough for Florida’s heat and humidity, and dependable enough to trust with once-in-a-lifetime moments. A must-have for anyone juggling creative work and outdoor adventure. ... show more
Reviewed in the United States on September 28, 2025 by Al Fonso

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