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Small Power Supply

A power supply is an electrical component that supplies electrical power to a load. It is one of the most important parts of a computer, as it provides the energy needed to run all of the components in the computer. Browse the top-ranked list of small power supplies below along with associated reviews and opinions. 

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  1. Metra - Heise 12V Power Supply - Multi

    SKU: J7RX7YJ2X2

    Found this power supply connection at best buy work very good...Power supply

    Product Description

    A lightweight multi-color 12V power supply delivering 2 amps for single-color LED lighting systems.
    See all Lighting
    Your price for this item is $22.99

  2. Thermaltake - Toughpower SFX 850W 80Plus Platinum ATX 3.1 Standard Power Supply - Black

    SKU: J39ZPC9VTH

    Product Description

    A fully modular black power supply featuring 80 PLUS Platinum efficiency and ATX 3.1 compatibility.
    See all Power Supplies
    Your price for this item is $149.99
    Save $30
    The previous price was $179.99

  3. Thermaltake - Toughpower SFX 750W 80Plus Platinum ATX 3.1 Standard Power Supply - Black

    SKU: J39ZPC9V6V

    Product Description

    A fully modular black power supply featuring 80 PLUS Platinum efficiency and ATX 3.1 compatibility.
    See all Power Supplies
    Your price for this item is $140.99
    Save $29
    The previous price was $169.99
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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.