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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.
Fulfilled by Amazon
Arrives Thursday, Mar 19
Order within 15 hours and 34 minutes
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Style: Old Version


Capacity: 256GB


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: Thursday, Mar 19

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

    • These are EXCELLENT cards if your device isn't up to UHS II standards.
Style: Old Version Capacity: 128GB
I purchased these in hopes of getting the most out of my Nikon D7100 on a trip to Alaska, and they didn't disappoint. They didn't solve the issue I was chasing (Frames Per Second and the Memory Buffer) but I didn't expect them to either. What they did do is perform perfectly. Over 3300 pictures without any data compromise. They were instantly recognized by my camera upon insertion and formatted fine. Transfer to a PC is with speeds as expected depending on your interface. Write speeds are more than enough for my use case. They even work in my Nikon D500 but I'm not using them there as I'm moving to UHS II cards for that (and NVME with a CFeB adapter). ... show more
Reviewed in the United States on February 22, 2026 by Sean Wall
    • Reliable and high capacity: Great for photos
Style: Old Version Capacity: 128GB
Excellent card; this brand is very reliable. I was able to store many photos, and I highly recommend it.
Reviewed in the United States on February 26, 2026 by Rhaywal Parra
    • Reliable, Fast, and Worth Every Penny
Style: Old Version Capacity: 128GB
⭐⭐⭐⭐⭐ Reliable, Fast, and Worth Every Penny I’ve been using this SanDisk Extreme PRO 128GB SDXC card for all my photo and video needs, and it’s been fantastic. The storage capacity is generous — plenty of room for high-resolution photos, long 4K videos, and lots of travel footage without having to swap cards constantly. Users consistently praise its speed and reliability, especially when shooting in burst mode or recording UHD video. 📸 Performance: The card delivers fast read and write speeds that make transferring files quick and smooth, and it handles demanding tasks like 4K video and rapid-fire shooting without hiccups. 💪 Durable Build: Like other SanDisk Extreme PRO cards, this one is built to endure — it resists water, shock, x-rays, and extreme temperatures, so I don’t worry when I take it into rugged conditions. 👍 Compatibility: It works flawlessly with a variety of cameras, from DSLRs to mirrorless bodies and drones — plug-and-play performance every time. My only suggestion is to buy from reputable sellers to avoid counterfeit cards, as that can be an issue on some marketplaces. But if you get the genuine product, this card is well worth the investment and a great choice for both enthusiasts and pros. ... show more
Reviewed in the United States on January 30, 2026 by Ashtan Talton
    • Quality is amazing and fast read and write speed
Style: Old Version Capacity: 512GB
Can definitely take more pictures now really fast to transfer and respond. Great quality photos easy to format to camera, easy to install on camera. Compatible with my camera. Great price as well when transferring photos speed is fast.
Reviewed in the United States on February 26, 2026 by YUNA125
    • Fast and reliable memory card
Style: Old Version Capacity: 256GB
Fast and dependable Memory Card. Excellent quality with above average performance.
Reviewed in the United States on February 28, 2026 by Steward H.
    • Good
Style: Old Version Capacity: 256GB
Good sd card, price can get expensive.
Reviewed in the United States on February 27, 2026 by Alyvia
    • Really great SD card. Price is crazy....
Style: Old Version Capacity: 128GB
Great card but the price for SD cards is getting stupid crazy. Purchased this, 128g, right after Thanksgiving 2025 for $19.95 and have watched them climb to now for around $50 for one card. I love San Disk but I hope they can reign in these prices. Highly recommend them if you can get them. They have worked consistently for me with no issues.. ... show more
Reviewed in the United States on February 15, 2026 by Rick L
    • Fast, Reliable SD Card Perfect for 4K Video and High-Speed Shooting
Style: Old Version Capacity: 32GB
The SanDisk 32GB Extreme PRO SDHC UHS-I Memory Card delivers excellent performance and reliability. With U3 and V30 ratings, it handles 4K UHD video recording smoothly and keeps up with high-speed continuous shooting without dropped frames. Write and read speeds are fast and consistent, and the card performs reliably in cameras, action cams, and other SDHC-compatible devices. I’ve found it very dependable for both photo and video work, even during longer recording sessions. SanDisk’s reputation for durability and quality shows here, and the card feels well-made and trustworthy. If you need a high-performance SD card for demanding applications like 4K video or burst photography, this Extreme PRO card is an excellent choice and performs exactly as advertised. ... show more
Reviewed in the United States on December 13, 2025 by Michael S.

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