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Best Atx Power Supply

A power supply is the heart of a PC. It's the component that takes the AC power from your wall socket and converts it into the direct current (DC) needed to run your computer. Over the years, ATX power supplies have gotten better in terms of efficiency, reliability, and noise levels. But there are still differences between models, especially in terms of size. Browse the top-ranked list of best atx power supplies below along with associated reviews and opinions. 

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  1. CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    SKU: J39QHTJW78

    Product Description

    A fully modular black ATX power supply offering Cybenetics Gold efficiency and ultra-quiet 140mm fan.
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    Your price for this item is $169.99

  2. CORSAIR - RMe Series RM1200e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.0 Power Supply - Black

    SKU: J39QHT2RCL

    I’m loving this power supply, stays cool, has no coil winding and powers everything perfectly...Great power supply so far just put it in my build....Love corsair power supplies.

    Product Description

    A fully modular black power supply offering 1200W, low-noise operation, and 80 PLUS Gold efficiency.
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    Your price for this item is $199.99
    Save $35
    The previous price was $234.99

  3. CORSAIR - RMX Series RM1000x Cybenetics Gold Fully Modular ATX Power Supply - Black

    SKU: J39QHTJWGF

    Product Description

    A fully modular black ATX power supply offering Cybenetics Gold efficiency and ultra-quiet 140mm fan.
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    Your price for this item is $209.99

  4. 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.
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    Your price for this item is $99.99
    Save $25
    The previous price was $124.99

  5. CORSAIR - HXi Series 1000W 80 Plus Cybenetics Platinum Fully Modular Ultra-Low Noise ATX Power Supply - Black

    SKU: J39QHT2QK7

    Product Description

    A fully modular black ATX power supply with 1000W Platinum efficiency and ultra-low noise operation.
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    Your price for this item is $234.99
    Save $55
    The previous price was $289.99

  6. MSI - MPG A850GS PCIE5 850W ATX 3.1 &PCIe 5.1 Ready Full Modular 80 Plus Gold Gaming Power Supply - Black

    SKU: J3P7TX9CCT

    Product Description

    A fully modular black power supply with 850W output, 80 Plus Gold efficiency, and PCIe 5.1 support.
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    Your price for this item is $97.49
    Save $64
    The previous price was $161.99

  7. NZXT - C 1200W ATX 3.1 80 Plus Gold Fully Modular Power Supply - Black

    SKU: J3GWJHQJ95

    Product Description

    A fully modular black ATX power supply with 1200W output, 80 Plus Gold efficiency, and quiet cooling.
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    Your price for this item is $169.99
    Save $30
    The previous price was $199.99

  8. NZXT - Gold Core 750W ATX 3.1 / PCIE 5.1 80 Plus Gold Cybenetics Platinum Fully Modular Power Supply - Black

    SKU: J3GWJHQLRS

    Product Description

    A fully modular black power supply with 750W output, 80 PLUS Gold efficiency, and PCIe 5.1 support.
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    Your price for this item is $119.99

  9. PCCOOLER - YS1200 1200W 80 Plus Gold Certified Fully Modular PCIe 5.1 & ATX 3.1 Gaming Power Supply - Black

    SKU: CZ92Y4Z4HS

    Product Description

    A fully modular black power supply with 80 Plus Gold efficiency, PCIe 5.1, and silent hybrid fan.
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    Your price for this item is $219.99

  10. PCCOOLER - YS1000 1000W 80 Plus Gold Certified Fully Modular PCIe 5.1 & ATX 3.1 Gaming Power Supply - Black

    SKU: CZ92Y4Z4R8

    Product Description

    A fully modular black power supply with 80 Plus Gold efficiency, PCIe 5.1, and silent hybrid fan.
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    Your price for this item is $179.99
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FAQ

When choosing an ATX power supply, consider features such as modular cabling for easier cable management, high efficiency ratings like 80 PLUS certification, quiet operation with optimized cooling fans, and reliable brand reputation. Additional features like over-voltage and short-circuit protection can also enhance system safety.

Yes, many ATX power supplies are designed to support the demanding power requirements of high-end gaming rigs and workstation PCs. Look for models with higher wattage outputs and multiple PCIe connectors to ensure compatibility with powerful graphics cards and other components.

Modular ATX power supplies allow you to connect only the cables you need for your specific build, reducing cable clutter and improving airflow inside your PC case. This can make installation easier and help maintain a cleaner, more organized system.

A higher efficiency rating, such as 80 PLUS Bronze, Silver, Gold, or Platinum, means the power supply converts more of the wall power into usable energy for your PC, wasting less as heat. This can lead to lower electricity costs and a cooler, quieter system.

ATX power supplies are the standard size for most mid-tower and full-tower desktop cases. Before purchasing, check your case specifications to ensure compatibility, but in general, an ATX power supply will fit most standard PC builds.