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12 Volt Power Supply

A power supply is an electrical component that supplies electric power, usually to an electrical device. The term is common in reference to devices that convert one form of electrical energy into another, such as a power supply for a computer. A power supply also refers to an internal part of many electronic devices. Browse the top-ranked list of 12 volt power supplies below along with associated reviews and opinions.

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  1. PAC - 12V DC Adapter - Black

    SKU: J2VK4T5F99

    Works greatWorks perfectly in a car or boat or whatever needed for extra 12 volt power...Needed to add an additional 12 Volt Power Outlet under the dash of my new Bronco. ...Additional 12 Volt Power Outlet...

    Product Description

    A universal black 12V DC adapter that adds a power outlet and 10A fuse protection in vehicles.
    See all Cell Phone Car Chargers
    Your price for this item is $9.99

  2. CORSAIR - RMe Series RM750e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.1 Power Supply - Black

    SKU: J39QHT23ZX

    Excellent power source...Fully functional and easy to install. Quiet and powers up quickly...Ultra Quiet Power Supply!...Works exactly as advertised. Powers my PC and all it's components perfectly all...

    Product Description

    A fully modular black power supply offering low-noise operation, 80 PLUS Gold efficiency, and ATX 3.1 compatibility.
    See all Power Supplies
    Your price for this item is $89.99
    Save $25
    The previous price was $114.99

  3. Renogy - 200 Watt 12 Volt Monocrystalline Solar Kit w/ 2 Pcs 100W Solar Panel and 30A PWM Charge Controller - Black

    SKU: J3LWZ8HLGZ

    Product Description

    A black monocrystalline solar kit with two 100W panels and a 30A PWM charge controller.
    See all Solar Panels
    Your price for this item is $285.99
    Save $4
    The previous price was $289.99

  4. Renogy - N-Type 16BB 100-Watt 12 Volt Monocrystalline Rigid Solar Panel Back-up Power for RV Marine - Black

    SKU: J39HFG7XGZ

    Product Description

    A black rigid monocrystalline solar panel providing 100 watts of backup power for RVs and marine use.
    See all Solar Panels
    Your price for this item is $89.99

  5. CORSAIR - 12-Pin GPU Power Cable, Sleeved - Black

    SKU: J39QHHVQRK

    Runs straight from the power supply to the video card. I verified the correct voltage readings on my system, provides six 12v circuits and six ground circuits....CORSAIR - 12-Pin GPU Power Cable, Sleeved...

    Product Description

    A black sleeved power cable that connects modular power supplies to 12-pin GPUs for easy cable management.
    See all Power Supplies
    Your price for this item is $19.99

  6. CORSAIR - RMe Series RM850e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.1 Power Supply - Black

    SKU: J39QHT23VT

    Product Description

    A fully modular black power supply with Cybenetics Gold efficiency and low-noise 120mm rifle bearing fan.
    See all Power Supplies
    Your price for this item is $144.99

  7. CORSAIR - RMe Series RM750e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.1 Power Supply - White

    SKU: J39QHTCVCY

    Love love love, it’s pretty and white and the power is unmatched...Fixed my Power Issues

    Product Description

    A fully modular, low-noise white power supply with Cybenetics Gold efficiency and ATX 3.1 compliance.
    See all Power Supplies
    Your price for this item is $99.99
    Save $25
    The previous price was $124.99

  8. CORSAIR - RMe Series RM1000e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.1 Power Supply - Black

    SKU: J39QHT28XQ

    Product Description

    A fully modular black power supply offering low-noise operation, Cybenetics Gold efficiency, and ATX 3.1 compatibility.
    See all Power Supplies
    Your price for this item is $147.99
    Save $42
    The previous price was $189.99

  9. Renogy - 200 Watt 12 Volt Portable Foldable Solar Panel with Waterproof 20A Charger Controller - Black

    SKU: J3GTKV4QC5

    Product Description

    A portable black foldable solar panel kit with waterproof 20A charger controller for versatile off-grid power.
    See all Solar Panels
    Your price for this item is $319.99

  10. Thermaltake - Toughpower GT 1200W 80+ Gold ATX 3.1 Power Supply - Black

    SKU: J39TQXRSQL

    Product Description

    A fully modular black power supply delivering 1200W, 80 Plus Gold efficiency, and ATX 3.1 compatibility.
    See all Power Supplies
    Your price for this item is $179.99
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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.