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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  • 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 Association’s official website.)
  • Digital Camera
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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

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.

  • aa111@11.com

    08-03-2026

    Ive been using SanDisk SD cards for a while now for photography, video and other stuff. With flash memory prices dropping lately, this 64GB Extreme PRO is honestly the best value you can get right now, especially with 200 MB/s speeds.I'll be the first to admit I used to cheap out on SD cards thinking they were all the same. They all eventually failed on me. Since switching to SanDisk though, I haven't had one fail yet. The main reason I need new ones is because I keep misplacing them, so definitely get yourself a SD card holder if you're like me.One thing I noticed straight away is the build quality. This card actually feels premium and solid in your hand, unlike some cheaper ones I've owned in the past that feel light and cheap like they'd snap in half. You can tell the difference immediately.The 200 MB/s transfers have made moving large photo and video files quick and easy, and it has handled 4K recording without any issues.Overall really happy with this purchase and most definitely will keep buying again as needed.

  • biancaditlhobolo@gmail.com

    08-03-2026

    I've never had problems with SanDisk SD cards, my only concern is their authenticity. I feel buying from Amazon is a better option.

  • vinsonamos4@gmail.com

    08-03-2026

    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.

  • lyndanashn7618@gmail.com

    08-03-2026

    This SD card performs exactly as promised. It’s fast, dependable, and handles large 4K video files with zero lag or dropped frames. Good picture quality. I use it for both photography and video work, and the write speed easily keeps up with burst shooting and high-bitrate recording.The design feels sturdy, and SanDisk’s reliability really shows, no corruption or read errors after months of use. It transfers files quickly to my computer and saves a ton of time during editing.Overall, it’s the best value card in this range, pro-level performance at a reasonable price. A must-have if you shoot photos or video seriously.

  • mariaslsharonor8292@gmail.com

    08-03-2026

    I bought this SanDisk 256GB Extreme PRO SDXC card for my A6700 and it's been a game changer. The write speeds are fast enough to handle burst photo shoots and 4K video recording without buffering or dropped frames. I've used it on several shoots, from family events to travel, and it has never failed or corrupted my footage. The large 256GB capacity means I can shoot all day and not worry about constantly swapping cards or running out of space. It also seems to handle temperature changes and occasional moisture exposure without issue, giving me peace of mind when shooting outdoors. If you need a reliable, high performance SD card for photography or videography, this one is worth the investment.

  • plindsey790@gmail.com

    08-03-2026

    Super pour mon usage.

  • manchiamkumar@gmail.com

    08-03-2026

    Best sd card for holding your files and photos

  • wardenrosewallzdwl7056@gmail.com

    08-03-2026

    I recently purchased this SD card for my camera, and I couldn’t be happier! The storage capacity is perfect for my needs, allowing me to take hundreds of high-resolution photos without worrying about space. The read and write speeds are excellent, making file transfers quick and efficient.I’ve used it for both photography and video recording, and it has performed flawlessly with no lag or corruption issues. It’s also very reliable I’ve taken it on outdoor shoots in different weather conditions, and it works perfectly every time.If you’re looking for a fast and dependable SD card, I highly recommend this one!

  • heather16@bins.com

    08-03-2026

    Why did you pick this product vs others?:This SanDisk 1TB Extreme PRO SDXC card is a game changer! I’m a photographer and videographer who regularly shoots in 4K UHD, and this card has exceeded my expectations in both speed and reliability.✅ Ultra-fast performance: Transfers and writes are incredibly fast thanks to UHS-I and V30 rating. I haven’t experienced any lag when shooting continuous RAW photos or recording long 4K video clips.✅ Huge 1TB capacity: I can store hours of 4K footage and thousands of high-res photos without switching cards—perfect for travel or long shoots.✅ Durable and dependable: SanDisk lives up to its reputation. This card has been through heat, dust, and constant use without a single hiccup.✅ Backed by a trusted brand: I’ve used SanDisk cards for years and have never lost data.Whether you're using a DSLR, mirrorless camera, or even a high-end drone, this card is worth every penny. If you’re serious about photography or videography, this is a must-have.

  • owenwood@microsoft.com

    08-03-2026

    The SanDisk 128GB Extreme PRO SDXC UHS-I Memory Card is hands down one of the best memory cards I’ve ever used! The speed and performance are outstanding—perfect for shooting 4K UHD videos and capturing high-resolution photos without any lag or buffering. The U3 and V30 ratings really deliver fast read and write speeds, which makes transferring large files quick and seamless. It’s reliable, durable, and built to handle tough conditions like heat, cold, or moisture. I trust it completely for my camera, drone, and GoPro footage. If you want performance and peace of mind, this memory card is worth every penny!

  • kingcerys57@gmail.com

    08-03-2026

    works great, just what I was looking for! best price with amount of storage out there.

  • daija34@yahoo.com

    08-03-2026

    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.

  • makfiaylab@gmail.com

    08-03-2026

    This card is excellent for professional shooting. I use the 256GB size in my mirrorless camera for continuous 4K video recording. The V30 speed rating is real; the camera writes without any buffer delay. Transferring large video files to my computer is also very quick. The only negative is the high cost compared to slower cards, but the reliability makes the extra money worth it.

There have been no reviews for this product yet.
  • aa1******

    Ive been using SanDisk SD cards for a while now for photography, video and other stuff. With flash memory prices dropping lately, this 64GB Extreme PRO is honestly the best value you can get right now, especially with 200 MB/s speeds.I'll be the first to admit I used to cheap out on SD cards thinking they were all the same. They all eventually failed on me. Since switching to SanDisk though, I haven't had one fail yet. The main reason I need new ones is because I keep misplacing them, so definitely get yourself a SD card holder if you're like me.One thing I noticed straight away is the build quality. This card actually feels premium and solid in your hand, unlike some cheaper ones I've owned in the past that feel light and cheap like they'd snap in half. You can tell the difference immediately.The 200 MB/s transfers have made moving large photo and video files quick and easy, and it has handled 4K recording without any issues.Overall really happy with this purchase and most definitely will keep buying again as needed.

  • bia******

    I've never had problems with SanDisk SD cards, my only concern is their authenticity. I feel buying from Amazon is a better option.

  • vin******

    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.

  • lyn******

    This SD card performs exactly as promised. It’s fast, dependable, and handles large 4K video files with zero lag or dropped frames. Good picture quality. I use it for both photography and video work, and the write speed easily keeps up with burst shooting and high-bitrate recording.The design feels sturdy, and SanDisk’s reliability really shows, no corruption or read errors after months of use. It transfers files quickly to my computer and saves a ton of time during editing.Overall, it’s the best value card in this range, pro-level performance at a reasonable price. A must-have if you shoot photos or video seriously.

  • mar******

    I bought this SanDisk 256GB Extreme PRO SDXC card for my A6700 and it's been a game changer. The write speeds are fast enough to handle burst photo shoots and 4K video recording without buffering or dropped frames. I've used it on several shoots, from family events to travel, and it has never failed or corrupted my footage. The large 256GB capacity means I can shoot all day and not worry about constantly swapping cards or running out of space. It also seems to handle temperature changes and occasional moisture exposure without issue, giving me peace of mind when shooting outdoors. If you need a reliable, high performance SD card for photography or videography, this one is worth the investment.

  • pli******

    Super pour mon usage.

  • man******

    Best sd card for holding your files and photos

  • war******

    I recently purchased this SD card for my camera, and I couldn’t be happier! The storage capacity is perfect for my needs, allowing me to take hundreds of high-resolution photos without worrying about space. The read and write speeds are excellent, making file transfers quick and efficient.I’ve used it for both photography and video recording, and it has performed flawlessly with no lag or corruption issues. It’s also very reliable I’ve taken it on outdoor shoots in different weather conditions, and it works perfectly every time.If you’re looking for a fast and dependable SD card, I highly recommend this one!

  • hea******

    Why did you pick this product vs others?:This SanDisk 1TB Extreme PRO SDXC card is a game changer! I’m a photographer and videographer who regularly shoots in 4K UHD, and this card has exceeded my expectations in both speed and reliability.✅ Ultra-fast performance: Transfers and writes are incredibly fast thanks to UHS-I and V30 rating. I haven’t experienced any lag when shooting continuous RAW photos or recording long 4K video clips.✅ Huge 1TB capacity: I can store hours of 4K footage and thousands of high-res photos without switching cards—perfect for travel or long shoots.✅ Durable and dependable: SanDisk lives up to its reputation. This card has been through heat, dust, and constant use without a single hiccup.✅ Backed by a trusted brand: I’ve used SanDisk cards for years and have never lost data.Whether you're using a DSLR, mirrorless camera, or even a high-end drone, this card is worth every penny. If you’re serious about photography or videography, this is a must-have.

  • owe******

    The SanDisk 128GB Extreme PRO SDXC UHS-I Memory Card is hands down one of the best memory cards I’ve ever used! The speed and performance are outstanding—perfect for shooting 4K UHD videos and capturing high-resolution photos without any lag or buffering. The U3 and V30 ratings really deliver fast read and write speeds, which makes transferring large files quick and seamless. It’s reliable, durable, and built to handle tough conditions like heat, cold, or moisture. I trust it completely for my camera, drone, and GoPro footage. If you want performance and peace of mind, this memory card is worth every penny!

  • kin******

    works great, just what I was looking for! best price with amount of storage out there.

  • dai******

    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.

  • mak******

    This card is excellent for professional shooting. I use the 256GB size in my mirrorless camera for continuous 4K video recording. The V30 speed rating is real; the camera writes without any buffer delay. Transferring large video files to my computer is also very quick. The only negative is the high cost compared to slower cards, but the reliability makes the extra money worth it.

M01 M02-256GB Improve Your Workflow Efficiency

With SANDISK QuickFlow Technology(2), this card optimizes performance with quick transfer speeds up to 200MB/s.(1) Pair with the SANDISK Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately).[64GB-1TB](7)

SANDISK Extreme PRO SDXC card Video M04 Shot Speeds up to 140MB/s(1)[256GB-1TB]

With shot speeds up to 140MB/s the card is perfect for capturing the action as it happens, without missing a beat.[256GB-1TB]

A man using his DSLR camera in icy terrain 4K UHD Video(3)

Sometimes speed is what you need. This card delivers the performance to capture stunning, uninterrupted 4K UHD video.

M05-Feature 2 Sequential Burst Mode

Rated UHS Speed Class 3 (U3) and Video Speed Class 30 (V30)(4), this card lets you capture sequential burst mode shots without missing a beat.

A man hangs over an icy hole pointing his camera above Trusted Durability

Built for and tested in harsh conditions, this card is temperature, water, shock, humidity, wear out, drop, X-ray, and magnet proof.(5)

M05-Feature 4-256GB Image Recovery

Includes a 2-year offer for RescuePRO Deluxe file recovery software.(6)

Upgrade your workflow

Legal disclaimers

Not all devices support SDXC. Check with device manufacturer for more details.

(1) Speeds vary by capacity. [256GB-1TB]: 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. [64GB-128GB]: Up to 200MB/s read speed, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Write speed up to 90MB/s. Based on internal testing; performance may be lower depending upon host device. 1MB=1,000,000 bytes. [32GB]: Up to 100MB/s read speed. Write speed up to 90MB/s. Based on internal testing; performance may be lower depending upon host device. 1MB=1,000,000 bytes. (2) SANDISK QuickFlow Technology is only available for 64GB, 128GB, 256GB, 512GB and 1TB capacities. Must use SANDISK Professional PRO-READER SD and microSD to achieve maximum transfer speeds (sold separately). (3) 4K UHD (3840 x 2160) video support may vary based upon host device, file attributes and other factors. See HD page on Sandisk site. (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. (5) Card only. See product packaging or proof page on Sandisk site. (6) Registration required; Terms and conditions apply. (7) 1GB=1,000,000,000 bytes. 1TB=1,000,000,000,000 bytes. Actual user storage less.

Product specifications subject to change without notice. Pictures shown may vary from actual products.

SANDISK, the SANDISK logo, SANDISK Professional, RescuePRO, SANDISK Extreme PRO, and SANDISK QuickFlow are registered marks or marks of Sandisk Corporation or its affiliates in the US and/or other countries. The microSD, SDHC, and SDXC marks and logos are marks of SD-3C, LLC. All other marks are the property of their respective owners.

2025 Sandisk Corporation or its affiliates. All rights reserved.

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