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External Hard Drive Under $100

There's no question that the best way to back up your computer is to use an external hard drive. The question is, which one? If you're looking for a drive with enough capacity to hold all your files, is simple to set up and use, and costs less than $100, we've got you covered. Browse the top-ranked list of external hard drives under $100 below along with associated reviews and opinions. 

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  1. Seagate - Expansion 2TB External USB 3.0 Portable Hard Drive with Rescue Data Recovery Services - Black

    SKU: J37C5H48WF

    Best buy...I love Best Buy my every purchase since I started....Great service and products...Great service by Best Buy . One day free delivery is best

    Product Description

    A portable black external hard drive offering 2TB storage, fast USB 3.0 transfers, and data recovery services.
    See all External Hard Drives
    Your price for this item is $99.99

  2. WD - Easystore 1TB External USB 3.2 Gen 1 Portable Hard Drive - Black

    SKU: JXTHCJVL3S

    Great buy...Love it. This is the best gift to give yo anyone. !!...Best Harddrives...I love the WD harddrives, reliable and on Black Friday a great offer

    Product Description

    A portable black external hard drive offering 1TB storage, fast USB 3.2 Gen 1 connectivity, and backup software.
    See all External Hard Drives
    Your price for this item is $79.99

  3. WD - Easystore 2TB External USB 3.2 Gen 1 Portable Hard Drive - Black

    SKU: JXTHCJVLLX

    Great...Love Best Buy Geek Squad....Great I love it great product. I could not find it nowhere cheaper but Best Buy

    Product Description

    A portable black external hard drive offering 2TB storage, fast USB 3.2 connectivity, and backup software.
    See all External Hard Drives
    Your price for this item is $89.99

  4. Seagate - Game Drive for PlayStation Consoles 2TB External USB 3.2 Gen 1 Portable Hard Drive with Blue LED Lighting - White

    SKU: J37C5H5LKL

    Works great, love buying any electronics at Best Buy they have great price and product quality. ...I love best buy...I love Best Buy. You guys are amazing ! I love the deals !

    Product Description

    A white portable external hard drive with 2TB storage, USB 3.2 connectivity, and blue LED lighting.
    See all PS4 Storage
    Your price for this item is $119.99

  5. Seagate - 1TB External USB 3.0 Portable Hard Drive with Rescue Data Recovery Services - Black

    SKU: J37C5HK2HT

    Product Description

    A portable black external hard drive offering 1TB storage, fast USB 3.0 transfers, and data recovery services.
    See all External Hard Drives
    Your price for this item is $79.99
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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.