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256GB SDXC Memory Cards

Shop 256GB SDXC memory cards for compatible cameras, camcorders, and other devices that use SDXC storage. Compare read and write speeds, speed classes, and device requirements to find a card suited to your photos, video recordings, and file transfers.

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  1. SanDisk - Extreme PRO 256GB SDXC UHS-I Memory Card

    SKU: JXJ62C6C7R

    Product Description

    An ultra-fast, weather-resistant SDXC card with 256GB capacity, ideal for 4K UHD video and rapid data transfer.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $119.99
    Save $49
    The previous price was $169.52

  2. Lexar - 256GB Professional 2000x UHS-II SDXC Memory Card

    SKU: J36XPK426G

    Product Description

    A high-speed 256GB UHS-II SDXC memory card ideal for professional photography and 4K video recording.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $339.99

  3. SANDISK - Extreme PRO UHS-II V60 SDXC Memory Card - 256GB, Single

    SKU: JXJ62CQ9LF

    Product Description

    A 256GB SDXC card with 300MB/s read speeds for high-resolution photos, RAW files and video.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $299.99

  4. SANDISK - 256GB Extreme PRO SDXC UHS-I Memory Card: National Park Foundation Edition, R/W up to 250/170MB/s

    SKU: JXJ62CQSF6

    Love it!!...I found this to be the best sd card for photography!! Great quality too....The best...Love these cards. Fast and reliable! Wish they were more affordable I’d get more

    Product Description

    A durable, black SDXC memory card offering 256GB storage, water resistance, and fast 4K video capture speeds.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $139.99

  5. SANDISK - Ultra 256GB UHS-I 100MB/s Class 10 SDXC Memory Card

    SKU: JXJ62C9FXG

    Product Description

    A reliable black SDXC memory card offering 256GB storage, Class 10 performance, and up to 100MB/s speeds.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $85.51

  6. Lexar - 256GB Professional 1667x SD Card, UHS-II, C10, U3, V60, 1080p Full HD, 4K, Up To 250MB/s Read SDXC Memory Card

    SKU: J36XPKZLVS

    Best product for the price range. Solid and good quality. Way better than SanDisk...Great

    Product Description

    A high-speed black SDXC card with 256GB storage, 250MB/s read, and 120MB/s write speeds.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $169.99

  7. Insignia™ - 256GB SDXC UHS-I Memory Card, Read Speed Up to 200MB/s

    SKU: J2FPJK676Y

    Product Description

    A water-resistant SDXC memory card offering 256GB storage and up to 200MB/s read speed.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $134.99

  8. Lexar - Professional SILVER PLUS SDXC™ UHS-I Card (256 GB)

    SKU: J36XPK4HKS

    Fast, reliable, and great storage! Perfect for photos, videos, and expanding device memory.

    Product Description

    A durable silver and black SDXC card offering 256GB storage, 205MB/s read, and 150MB/s write speeds.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $119.99

  9. Lexar - GOLD Series Professional 1800x UHS-II SDXC Memory - 256GB, Card

    SKU: J36XPKZV8H

    Product Description

    A high-speed black and gold SDXC card offering 256GB storage, 280MB/s read, and V60 video performance.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $219.99

  10. Verbatim - VER70364 256GB Prem SDXC Memory CL10

    SKU: J72FJWL7ZF

    Product Description

    A black microSDXC card with 256GB storage, 100MB/s read speed, and adapter, built for durability.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $101.99

  11. Samsung - PRO Endurance 256GB MicroSDXC Memory Card

    SKU: J3ZYG2JZK7

    Love!...I love it! Works great! And would definitely buy again. Also, great price!...Best buy always has good sale prices!...The best microSD CARD...Big capicity, super i love it and 100% recommended

    Product Description

    A durable white microSDXC card offering 256GB storage, water resistance, and fast FHD/4K recording performance.
    See all microSDXC
    Your price for this item is $153.99

  12. SANDISK - 256GB microSDXC UHS-1 Memory Card Licensed for Nintendo Switch 1

    SKU: JXJ62C9226

    Great price...Great price, love it,especially Nintendo switch versions, and in yellow awesome easy to find....Love the deal at Best Buy. Thank you bestbuy....Best buy is great...Great price .. love shopping...

    Product Description

    A yellow water-resistant microSDXC card offering 256GB storage and fast read/write speeds for Nintendo Switch.
    See all microSDXC
    Your price for this item is $89.99

  13. SANDISK - Extreme UHS-I U3 microSDXC Memory Card - 256GB, Single

    SKU: JXJ62CQR5G

    Product Description

    A durable UHS-I U3 V30 microSDXC card capturing 5K and 4K UHD video with fast transfers.
    See all microSDXC
    Your price for this item is $79.49
    Save $11
    The previous price was $91.18

  14. Samsung - P9 Express 256GB microSDXC Memory Card

    SKU: JJGRF397XY

    Love this device! Very durable! Imports photos quickly and has great capacity!...Just great all round...part of a promotion.] project was very easy and fast it toke me a long time to feel it up over all...

    Product Description

    A white microSDXC card offering 256GB storage and 800MB/s read speed for smooth, reliable gaming.
    See all microSD Express
    Your price for this item is $153.99

  15. Samsung - microSDXC T9 256GB, Read/Write Speeds Up to 200/130 MB/s (MB-MH256T/WW)

    SKU: JJGRF39KX6

    The best!...The best memory card iv ever used. Completely exceeded my expectations!!! I love it!!!!!...Love it this was the best thing in the world to me.I love it so much.I would trade my own children...

    Product Description

    A black microSDXC card offering 256GB storage, water resistance, and fast 200/130 MB/s read/write speeds.
    See all microSDXC
    Your price for this item is $149.99

  16. SANDISK - 256GB Extreme PLUS microSDXC UHS-I Memory Card, R/W up to 200/140MB/s

    SKU: JXJ62C6CPZ

    great items best manager love best buy great products...Great product and price love best buy and their service.

    Product Description

    A high-speed red and gold microSDXC card offering 256GB storage and up to 200MB/sec read speeds.
    See all microSDXC
    Your price for this item is $63.99
    Save $16
    The previous price was $79.99

  17. SANDISK - 256GB microSDXC UHS-I for Nintendo Switch 1 Pokémon

    SKU: JXJ62CR6PF

    Product Description

    A yellow, water-resistant microSDXC card featuring Pokémon design, offering 256GB storage and fast read/write speeds.
    See all microSDXC
    Your price for this item is $82.99

  18. SanDisk - 256GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-256G-GN6MA)

    SKU: JXJ62C6Z5Q

    Product Description

    A high-speed 256GB microSDXC memory card with adapter, offering up to 150MB/s transfer rates.
    See all microSDXC
    Your price for this item is $75.05
    Save $1
    The previous price was $76.90

  19. SANDISK - 256GB Extreme PLUS microSDXC UHS-I Memory Card with Adapter, R/W up to 250/170MB/s

    SKU: JXJ62CQSKG

    Love this San Disk, it is a prod product I trusr. Great help from employees at Best Buy too....Great! You gotta get the high quality cards!!!! They work and transfer data the best and fast....Best Buy...

    Product Description

    A red and gold microSDXC card offering 256GB storage and up to 200MB/sec read speeds.
    See all microSDXC
    Your price for this item is $109.99

  20. Samsung - microSDXC T7 256GB, Transfer Speeds Up to 170 MB/s (MB-MB256T/WW)

    SKU: JJGRF3SK9L

    Great awesome thank you Samsung is the best ever. 5 stars...Great...Love it, great product works excellent works perfectly

    Product Description

    A blue water-resistant microSDXC card offering 256GB storage, 170 MB/s transfer speeds, and A2 app performance.
    See all microSDXC
    Your price for this item is $119.99

  21. Rexing - 256GB MicroSDXC UHS-3 Full HD Video High Speed Transfer Monitoring SD Memory Card with Adapter

    SKU: J3GTFKGZFC

    They worked great, would buy again. I like how they were the same brand as my cameras

    Product Description

    A high-speed, water-resistant black microSDXC card with 256GB storage and UHS-3 Class 10 performance.
    See all microSDXC
    Your price for this item is $89.99

  22. VIOFO - 256GB Industrial Grade microSD Card, U3 A2 V30 High Speed Memory Card with Adapter, Support Ultra HD 4K Recording

    SKU: CZTG5495GX

    Product Description

    A high-speed, industrial-grade microSD card with 256GB storage, 100MB/s read speed, and water resistance.
    See all microSD (SDHC, SDXC)
    Your price for this item is $109.99
    Save $9
    The previous price was $119.95

  23. Insignia™ - 256GB microSDXC UHS-I Memory Card, Read Speed Up to 200MB/s

    SKU: J2FPJK6792

    Product Description

    A water-resistant microSDXC memory card offering 256GB storage and up to 200MB/s read speed.
    See all microSDXC
    Your price for this item is $114.99

  24. ADATA - Speed Plus 256GB microSDXC Card with Adapter Fast Read Up to 180MB/s

    SKU: J39VZTX3LP

    Product Description

    A high-speed black microSDXC card with 256GB capacity, ideal for 4K video, photos, and apps.
    See all microSDXC
    Your price for this item is $44.99
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A 256GB SDXC memory card offers generous storage for high-resolution photos, video recordings, music and other digital files, making it a practical option for compatible cameras, camcorders and other devices. SDXC stands for Secure Digital Extended Capacity, a memory card standard designed for capacities greater than 32GB and up to 2TB. With a 256GB memory card, you can keep more content on hand between file transfers, whether you’re capturing a vacation, photographing a special event or working on a creative project. The number of photos or hours of video a card can hold depends on factors such as image resolution, file format, compression and video bitrate, and available storage will be less than the labeled capacity after formatting. Before choosing a 256GB SDXC card, check your device’s specifications for supported card types and maximum capacity. Full-size SDXC memory cards and microSDXC memory cards have different physical dimensions, although a compatible microSDXC card can fit a full-size SD slot with an appropriate adapter. Finding the best 256GB SDXC memory card for your needs also means matching its speed ratings to your recording and file-transfer requirements. Read speeds help determine how quickly you can copy photos and videos to a computer, while sustained write speeds are especially important for continuous shooting and high-bitrate video capture. Video Speed Class ratings such as V30, V60 and V90 indicate minimum sustained sequential write speeds of 30, 60 and 90 megabytes per second, respectively, under specified conditions. A V30 SDXC card may meet the requirements of many 4K recording modes, but more demanding settings can call for V60 or V90, so follow your camera manufacturer’s recommendations. UHS-I and UHS-II describe card interface standards rather than guaranteed recording speeds, and reaching a card’s advertised transfer performance requires compatible equipment. A suitable SD card reader can help streamline backups and transfers, while features such as water resistance and temperature tolerance may offer added protection on models that specify them. Back up important files regularly, and choose a 256GB SDXC memory card with the capacity, compatibility and performance your workflow requires.

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FAQ

Check your device’s manual or manufacturer specifications for explicit SDXC support. An SD card slot alone does not confirm compatibility, and devices that support only SD or SDHC cards may not recognize SDXC cards.

Speed-class symbols identify minimum sustained write speeds under defined conditions. For example, U3 and V30 each indicate a minimum of 30 MB/s within their respective rating systems. UHS-I and UHS-II describe bus interfaces rather than speed classes. Match the card’s ratings to your device manufacturer’s requirements.

SDXC memory cards normally use exFAT, which supports individual files larger than FAT32’s 4GB limit. Follow your device manufacturer’s formatting instructions, since some devices require a particular file system or formatting procedure.

Insert the card into an SDXC-compatible computer slot or external card reader, then use File Explorer on Windows or Finder on macOS to copy the files. Some cameras and other devices also let you transfer files through a USB connection while the card remains installed.

DCIM stands for Digital Camera Images. Cameras commonly use this folder as part of a standardized directory structure for storing photos and some videos. Other recordings may appear in separate folders, depending on the device.

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Best Buy Canada

In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.