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Phone Memory Card

If you're looking to add more storage space to your phone, an external memory card can help. These cards are available in a variety of sizes and offer a way to carry your files with you when you leave the house or need to transfer files from your phone to another. Browse the top-ranked list of phone memory cards below along with associated reviews and opinions. 

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  1. Samsung - Pro Ultimate and Adapter 512GB microSDXC Memory Card

    SKU: J3ZYG293V9

    Product Description

    A high-speed blue microSDXC card with 512GB storage and adapter, ideal for creative and professional use.
    See all microSDXC
    Your price for this item is $149.99
    Save $50
    The previous price was $199.99

  2. Samsung - Pro Plus 256GB microSDXC Memory Card

    SKU: J3ZYG2PHHC

    Product Description

    A high-performance blue microSDXC card with 256GB storage and 180MB/s read speed for 4K video.
    See all microSDXC
    Your price for this item is $79.99

  3. Samsung - PRO Endurance 128GB microSDXC SD Memory Card

    SKU: J3ZYG2JZWK

    Product Description

    A durable white microSDXC card offering 128GB storage, water resistance, and fast FHD/4K recording performance.
    See all microSDXC
    Your price for this item is $76.99

  4. Samsung - Pro Plus 512GB microSDXC Memory Card

    SKU: J3ZYG2PH92

    Product Description

    A high-performance blue microSDXC card offering 512GB storage and fast 180MB/s read speeds for 4K video.
    See all microSDXC
    Your price for this item is $163.99

  5. Samsung - PRO Endurance 256GB MicroSDXC Memory Card

    SKU: J3ZYG2JZK7

    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

  6. Samsung - Pro Ultimate and Adapter 128GB microSDXC Memory Card

    SKU: J3ZYG293F6

    This sd card is just what I needed to store files I want to keep on devices that really don’t have as much memory as I want/need. ...Swapped out memory card to accommodate more photos in my Samsubg S20...

    Product Description

    A high-speed 128GB microSDXC card with adapter, ideal for storing photos, videos, and files.
    See all microSDXC
    Your price for this item is $62.99

  7. Samsung - Pro Ultimate and Reader 128GB microSDXC Memory Card

    SKU: J3ZYG298JV

    Product Description

    A high-speed blue microSDXC card with 128GB storage and USB plug, ideal for tablets and cameras.
    See all microSDXC
    Your price for this item is $62.99
    Save $4
    The previous price was $66.99

  8. SANDISK - 256GB Ultra Plus microSDXC UHS-I Memory Card for Chromebooks, up to 160MB/s

    SKU: JXJ62C64RT

    Strong Memory storage...Good quality memory stick. Holds up to the test of time....SD card...Must have for memory extension. Worked as expected.

    Product Description

    A water-resistant gray and red microSDXC card offering 256GB storage and up to 160MB/s transfer speeds.
    See all microSDXC
    Your price for this item is $69.99

  9. Sony - CEA-G240T

    SKU: J7XSRH5WSQ

    Product Description

    A high-speed black CFexpress Type A memory card offering 240GB storage and up to 1800MB/s read speed.
    See all Memory Cards
    Your price for this item is $249.99
    Save $20
    The previous price was $269.99
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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.