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Largest Computer Power Supply

A power supply is an electrical device that supplies electric power to an electrical load. It is one of the most important components in a computer, because it is what provides the power to all of the other components. Browse the top-ranked list of largest computer power supplies below along with associated reviews and opinions.

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  1. CORSAIR - HXi Series HX1500i 80 PLUS Platinum Fully Modular Ultra Low-Noise ATX 3.1 and PCIE 5.1 Power Supply - Black

    SKU: J39TSCHW9V

    Product Description

    A fully modular black power supply with ultra-low noise, 80 PLUS Platinum efficiency, and digital monitoring.
    See all Power Supplies
    Your price for this item is $349.99
    Save $40
    The previous price was $389.99

  2. CORSAIR - HXi Series HX1200i 80 PLUS Platinum Fully Modular Ultra Low-Noise ATX 3.1 and PCIE 5.1 Power Supply - Black

    SKU: J39TSCHTLL

    Product Description

    A fully modular black power supply offering 80 PLUS Platinum efficiency and ultra-low-noise fluid dynamic fan.
    See all Power Supplies
    Your price for this item is $299.99
    Save $45
    The previous price was $344.99

  3. MSI - MAG A1000GLS PCIE5 1000W ATX 3.1 & PCIe 5.1 Ready Full Modular 80 Plus Gold Gaming Power Supply - Black

    SKU: J3P7TX6S5V

    Product Description

    A fully modular black power supply with 1000W output, ATX 3.1, PCIe 5.1, and 80 Plus Gold efficiency.
    See all Power Supplies
    Your price for this item is $149.99
    Save $10
    The previous price was $159.99

  4. Thermaltake - Toughpower GF A3 1050W 80 PLUS Gold PCIe Gen 5 ATX 3.0 Ready Fully Modular Power Supply - Black

    SKU: J39ZPC9RKV

    Excellent power supply with lots of modular cabling options including the new connector for the latest GPUs. ...Works great computer stopped power off after I bought it...Excellent power supply...Power...

    Product Description

    A fully modular black power supply with 80 PLUS Gold efficiency and PCIe Gen 5.0 compatibility.
    See all Power Supplies
    Your price for this item is $163.99
    Save $6
    The previous price was $169.99

  5. Thermaltake - Toughpower GF A3 1200W 80 PLUS Gold PCIe Gen 5 ATX 3.0 Ready Fully Modular Power Supply - Black

    SKU: J39ZPC9H3L

    Product Description

    A fully modular black power supply with 1200W output, 80 PLUS Gold efficiency, and PCIe Gen 5 support.
    See all Power Supplies
    Your price for this item is $179.99
    Save $20
    The previous price was $199.99

  6. NZXT - C 1000W ATX 3.1 80 Plus Gold Fully Modular Power Supply - Black

    SKU: J3GWJHQJQ5

    Awesome power supply...Awesome power supply no problems still trying figure out some of the cables ....Excelente presentation, quality of the items, very good power supply and recommended.

    Product Description

    A fully modular black ATX power supply with 1000W output, 80 Plus Gold efficiency, and quiet operation.
    See all Power Supplies
    Your price for this item is $134.99
    Save $45
    The previous price was $179.99

  7. Thermaltake - Toughpower GF A3 1050W 80+ Gold PCIe Gen 5 ATX 3.1 Fully Modular Power Supply - Snow

    SKU: J39ZPC9KPW

    Product Description

    A fully modular white and gold ATX 3.1 power supply with 1050W output and PCIe Gen 5 support.
    See all Power Supplies
    Your price for this item is $149.99
    Save $20
    The previous price was $169.99

  8. MSI - MAG A850GLS PCIE5 850W ATX 3.1 & PCIe 5.1 Ready Full Modular 80 Plus Gold Gaming Power Supply - Black

    SKU: J3P7TX6SF8

    Product Description

    A fully modular black power supply with 850W output, 80 Plus Gold efficiency, and PCIe 5.1 support.
    See all Power Supplies
    Your price for this item is $129.99
    Save $10
    The previous price was $139.99

  9. MSI - A850GLS MLG EDITION 850W ATX 3.1 & PCIe 5.1 Ready Fully Modular 80 Plus Gold Gaming Power Supply - Black & Red

    SKU: J3P7TXQTGW

    Product Description

    A fully modular black and red power supply with 80 Plus Gold efficiency, ATX 3.1, and PCIe 5.1 support.
    See all Power Supplies
    Your price for this item is $124.99
    Save $35
    The previous price was $159.99

  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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