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Fastest Sdxc Memory Card

SD cards are small, portable, and easy to use. They're also one of the most useful pieces of technology you can have on hand. They're great for storing photos, videos and files of all kinds. Browse the top-ranked list of the fastest SDXC memory cards below along with associated reviews and opinions.

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  1. SANDISK - Extreme PRO 128GB SDXC UHS-I Memory Card

    SKU: JXJ62C6JVJ

    Product Description

    A rugged, water-resistant SDXC card offering 128GB storage and up to 200MB/sec rapid file transfers.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $83.69

  2. SANDISK - 512GB Extreme PLUS SDHC/SDXC UHS-I Memory Card, R/W up to 190/130MB/s

    SKU: JXJ62C6WSX

    Product Description

    A gold, water-resistant SDXC card offering 512GB storage and up to 190MB/s read speeds.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $127.99
    Save $32
    The previous price was $159.99

  3. Sony - SFG128T/T1 128GB SDXC UHS-II TOUGH G Series Memory Card

    SKU: J7XSRH42L6

    Product Description

    A black, ultra-rugged SDXC card offering 128GB storage, water resistance, and up to 300MB/s read speeds.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $261.49
    Save $83
    The previous price was $344.99

  4. SANDISK - 512GB microSD Express Memory Card , Works with Nintendo Switch 2, R/W up to 880/650MB/s

    SKU: JXJ62CR2T5

    Product Description

    A high-speed black and red microSD card offering 512GB storage and PCIe 3.1 NVMe performance.
    See all Memory Cards
    Your price for this item is $127.49
    Save $72
    The previous price was $199.99

  5. SANDISK - 256GB microSD Express Memory Card, Works with Nintendo Switch 2, R/W up to 880/650MB/s

    SKU: JXJ62C6FGR

    Product Description

    A high-speed black and red microSD card with 256GB storage, PCIe 3.1 NVMe, and UHS-I compatibility.
    See all microSDXC
    Your price for this item is $79.49
    Save $20
    The previous price was $99.99

  6. 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 $99.99
    Save $80
    The previous price was $180.89

  7. SANDISK - 256GB Extreme PRO SDXC UHS-II V60 Memory Card, R/W up to 280/150MB/s

    SKU: JXJ62C6FX7

    Product Description

    A high-speed, black SDXC memory card offering 256GB storage, V60 video rating, and water resistance.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $249.99

  8. Sony - SF-M Series 256GB SDXC UHS-II Memory Card

    SKU: J7XSRH4RGL

    Product Description

    A high-speed, black SDXC memory card offering 256GB storage, water resistance, and rapid 277MB/s read speeds.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $239.49
    Save $47
    The previous price was $286.79

  9. Sony - Tough High Performance 64GB SDXC UHS-II Class 10 U3 Flash Memory Card

    SKU: J7XSRH4LHF

    Product Description

    A black, ultra-rugged SDXC card offering 64GB storage, 300MB/s read, and 299MB/s write speeds.
    See all Secure Digital (SDHC, SDXC)
    Your price for this item is $208.99

  10. 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 $59.98
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FAQ

When searching for the fastest SDXC memory cards, look for high read and write speeds, UHS Speed Class ratings (such as UHS-II or UHS-III), and V30, V60, or V90 Video Speed Class ratings if you plan to record high-resolution video. Compatibility with your camera or device is also important.

Read speed affects how quickly you can transfer data from the SDXC card to your computer, while write speed determines how fast your device can save data to the card. Higher write speeds are essential for burst photography and 4K or 8K video recording.

Yes, the fastest SDXC memory cards are designed to handle the demands of professional photography and videography, including high-resolution image capture, RAW file recording, and seamless 4K or 8K video recording without dropped frames.

Fast SDXC memory cards are backward compatible with many SD card slots, but to achieve maximum speed, your device should support UHS-II or UHS-III standards. Using a fast card in a slower slot will limit its performance to the device's maximum supported speed.

UHS-I, UHS-II, and UHS-III refer to different bus interfaces that determine the maximum speed of SDXC cards. UHS-I offers up to 104 MB/s, UHS-II up to 312 MB/s, and UHS-III up to 624 MB/s. Higher UHS classes provide faster transfer rates, ideal for demanding applications.

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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.