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Best Buy customers often prefer the following products when searching for atx power supply.

A power supply is the electronic device that provides electrical power to a computer's components via the motherboard. The power supply is usually located in the computer's case, but some high-end motherboards have an external power supply. The power supply is the part of a computer most likely to fail, and it is also one of the most difficult parts to troubleshoot and repair. The ATX form factor is a specification for desktop computer power supplies. Here are some of the best ATX power supplies.

Main Results
  1. CORSAIR - SF-L Series SF850L 80 Plus Gold Fully Modular ATX Power Supply - Black - Front_Zoom
    Top comment

    "Power supply...Building a mini PC so needed a smaller power supply. This fit perfect....Great power supply for the price and can handle my 7800XT and 7800X3D with ease."

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    Product Description

    CORSAIR SF-L Series Fully Modular SFX Power Supplies with ATX 3.0 and PCIe 5.0 compliance provide the continuous high wattages demanded by the latest PC hardware, all in a space-saving SFX-L form-factor. Micro-fit PSU connectors and fully modular, flexible cables enable a tidy and compact build, even for exceedingly powerful systems. A 120mm rifle bearing PWM fan deploys Zero RPM mode at lower loads for exceptionally quiet performance. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability, backed by a seven-year warranty. Wake your computer faster and consume less power with Modern Standby sleep mode. For high-wattage, 80 PLUS Gold power in a compact profile, the SF-L Series is your small form X-factor.
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    Top comment

    "Power supply...Building a mini PC so needed a smaller power supply. This fit perfect....Great power supply for the price and can handle my 7800XT and 7800X3D with ease."

    See all customer reviews

    Product Description

    CORSAIR SF-L Series Fully Modular SFX Power Supplies with ATX 3.0 and PCIe 5.0 compliance provide the continuous high wattages demanded by the latest PC hardware, all in a space-saving SFX-L form-factor. Micro-fit PSU connectors and fully modular, flexible cables enable a tidy and compact build, even for exceedingly powerful systems. A 120mm rifle bearing PWM fan deploys Zero RPM mode at lower loads for exceptionally quiet performance. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability, backed by a seven-year warranty. Wake your computer faster and consume less power with Modern Standby sleep mode. For high-wattage, 80 PLUS Gold power in a compact profile, the SF-L Series is your small form X-factor.
    See all Power Supplies
    See all Power Supplies
  2. CORSAIR - HXi Series HX1200i 80 PLUS Platinum Cybenetics Platinum Fully Modular ATX Power Supply - Black - Front_Zoom

    Product Description

    CORSAIR HXi Series Fully Modular Ultra-Low Noise Power Supplies deliver exceptional 80 PLUS Platinum efficient power and low-noise fluid dynamic bearing fan performance. ATX 3.0 and PCIe 5.0 compliance, HXi PSUs have every connection needed to power today’s most demanding PC upgrades. Powerful CORSAIR iCUE software enables custom fan curves, monitoring and adjusting power settings, and more thanks to a fully digital platform. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability, backed by a ten-year warranty. Wake your computer faster and consume less power with Modern Standby sleep mode. Zero RPM mode ensures near-silent operation at low and medium loads. The HXi Series puts platinum power at your command.
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    Product Description

    CORSAIR HXi Series Fully Modular Ultra-Low Noise Power Supplies deliver exceptional 80 PLUS Platinum efficient power and low-noise fluid dynamic bearing fan performance. ATX 3.0 and PCIe 5.0 compliance, HXi PSUs have every connection needed to power today’s most demanding PC upgrades. Powerful CORSAIR iCUE software enables custom fan curves, monitoring and adjusting power settings, and more thanks to a fully digital platform. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability, backed by a ten-year warranty. Wake your computer faster and consume less power with Modern Standby sleep mode. Zero RPM mode ensures near-silent operation at low and medium loads. The HXi Series puts platinum power at your command.
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    See all Power Supplies
  3. CORSAIR - RMx Shift Series RM750x Shift Cybenetics Gold Fully Modular ATX Power Supply - White - Front_Zoom

    Product Description

    CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary side cable interface to keep all your connections within quick reach, for exceptionally convenient 80 PLUS Gold efficient power. With fully modular micro-fit connections and ATX 3.0 compliance, RMx SHIFT makes clean PC builds and upgrades even easier. RMx SHIFT PSUs use Japanese 105°C-rated electrolytic capacitors, for long life and reliability backed by a ten-year warranty. A 140mm fluid dynamic bearing fan utilizes a specially calculated fan curve for high performance and reliability with low noise, while Zero RPM mode support ensures virtually silent operation at low and medium loads. For quiet, efficient, and accessible power, put an RMx SHIFT Series PSU on your side.
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    Product Description

    CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary side cable interface to keep all your connections within quick reach, for exceptionally convenient 80 PLUS Gold efficient power. With fully modular micro-fit connections and ATX 3.0 compliance, RMx SHIFT makes clean PC builds and upgrades even easier. RMx SHIFT PSUs use Japanese 105°C-rated electrolytic capacitors, for long life and reliability backed by a ten-year warranty. A 140mm fluid dynamic bearing fan utilizes a specially calculated fan curve for high performance and reliability with low noise, while Zero RPM mode support ensures virtually silent operation at low and medium loads. For quiet, efficient, and accessible power, put an RMx SHIFT Series PSU on your side.
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    See all Power Supplies
  4. CORSAIR - RMx Shift Series RM850x Shift Cybenetics Gold Fully Modular ATX Power Supply - White - Front_Zoom

    Product Description

    CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary side cable interface to keep all your connections within quick reach, for exceptionally convenient 80 PLUS Gold efficient power. With fully modular micro-fit connections and ATX 3.0 compliance, RMx SHIFT makes clean PC builds and upgrades even easier. RMx SHIFT PSUs use Japanese 105°C-rated electrolytic capacitors, for long life and reliability backed by a ten-year warranty. A 140mm fluid dynamic bearing fan utilizes a specially calculated fan curve for high performance and reliability with low noise, while Zero RPM mode support ensures virtually silent operation at low and medium loads. For quiet, efficient, and accessible power, put an RMx SHIFT Series PSU on your side.
    See all Power Supplies

    Product Description

    CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary side cable interface to keep all your connections within quick reach, for exceptionally convenient 80 PLUS Gold efficient power. With fully modular micro-fit connections and ATX 3.0 compliance, RMx SHIFT makes clean PC builds and upgrades even easier. RMx SHIFT PSUs use Japanese 105°C-rated electrolytic capacitors, for long life and reliability backed by a ten-year warranty. A 140mm fluid dynamic bearing fan utilizes a specially calculated fan curve for high performance and reliability with low noise, while Zero RPM mode support ensures virtually silent operation at low and medium loads. For quiet, efficient, and accessible power, put an RMx SHIFT Series PSU on your side.
    See all Power Supplies
    See all Power Supplies
  5. CORSAIR - HXi Series 1500W 80 Plus Platinum Fully-Modular Ultra-Low Noise ATX Power Supply - Black - Front_Zoom
    Top comment

    "INFINITE POWER...Decided to upgrade since my old power supply only got me to 60hz which is dog water, complete doo doo was running my 3060 so i decided to upgrade and now my games load faster and my pc finally can have STAND POWER!...Amazing platinum power"

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    Product Description

    CORSAIR HXi Series Fully Modular Ultra-Low Noise Power Supplies deliver exceptional 80 PLUS Platinum efficient power and low-noise fluid dynamic bearing fan performance. ATX 3.0 and PCIe 5.0 compliance, HXi PSUs have every connection needed to power today’s most demanding PC upgrades. Powerful CORSAIR iCUE software enables custom fan curves, monitoring and adjusting power settings, and more thanks to a fully digital platform. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability, backed by a tenyear warranty. Wake your computer faster and consume less power with Modern Standby sleep mode. Zero RPM mode ensures near-silent operation at low and medium loads. The HXi Series puts platinum power at your command.
    See all Power Supplies
    Top comment

    "INFINITE POWER...Decided to upgrade since my old power supply only got me to 60hz which is dog water, complete doo doo was running my 3060 so i decided to upgrade and now my games load faster and my pc finally can have STAND POWER!...Amazing platinum power"

    See all customer reviews

    Product Description

    CORSAIR HXi Series Fully Modular Ultra-Low Noise Power Supplies deliver exceptional 80 PLUS Platinum efficient power and low-noise fluid dynamic bearing fan performance. ATX 3.0 and PCIe 5.0 compliance, HXi PSUs have every connection needed to power today’s most demanding PC upgrades. Powerful CORSAIR iCUE software enables custom fan curves, monitoring and adjusting power settings, and more thanks to a fully digital platform. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability, backed by a tenyear warranty. Wake your computer faster and consume less power with Modern Standby sleep mode. Zero RPM mode ensures near-silent operation at low and medium loads. The HXi Series puts platinum power at your command.
    See all Power Supplies
    See all Power Supplies
  6. CORSAIR - RMx Shift Series RM1000x 80 Plus Gold Fully Modular ATX Power Supply with Modular Side Interface - Black - Front_Zoom
    Top comment

    "atx 3.0...Perfect power delivery and stays QUIET! Even under load. comes with power for atx 3.0 pcie (the fancy new power cable for 4090's and such)...Corsair RM1000x Fully Modular ATX Power Supply...The staff at the Orland Park, IL location was super helpful in helping me choose which power supply I needed for my build at an amazing price!"

    See all customer reviews

    Product Description

    CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary side cable interface to keep all your connections within quick reach, for exceptionally convenient 80 PLUS Gold efficient power. With fully modular micro-fit connections and ATX 3.0 compliance, RMx SHIFT makes clean PC builds and upgrades even easier. RMx SHIFT PSUs use Japanese 105°C-rated electrolytic capacitors, for long life and reliability backed by a ten-year warranty. A 140mm fluid dynamic bearing fan utilizes a specially calculated fan curve for high performance and reliability with low noise, while Zero RPM mode support ensures virtually silent operation at low and medium loads. For quiet, efficient, and accessible power, put an RMx SHIFT Series PSU on your side.
    See all Power Supplies
    Top comment

    "atx 3.0...Perfect power delivery and stays QUIET! Even under load. comes with power for atx 3.0 pcie (the fancy new power cable for 4090's and such)...Corsair RM1000x Fully Modular ATX Power Supply...The staff at the Orland Park, IL location was super helpful in helping me choose which power supply I needed for my build at an amazing price!"

    See all customer reviews

    Product Description

    CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary side cable interface to keep all your connections within quick reach, for exceptionally convenient 80 PLUS Gold efficient power. With fully modular micro-fit connections and ATX 3.0 compliance, RMx SHIFT makes clean PC builds and upgrades even easier. RMx SHIFT PSUs use Japanese 105°C-rated electrolytic capacitors, for long life and reliability backed by a ten-year warranty. A 140mm fluid dynamic bearing fan utilizes a specially calculated fan curve for high performance and reliability with low noise, while Zero RPM mode support ensures virtually silent operation at low and medium loads. For quiet, efficient, and accessible power, put an RMx SHIFT Series PSU on your side.
    See all Power Supplies
    See all Power Supplies
  7. CORSAIR - RMx Shift Series RM850x 80 Plus Gold Fully Modular ATX Power Supply with Modular Side Interface - Black - Front_Zoom
    Top comment

    "A Power Supply That’s On Your Side...If you are looking for a power supply that offers high efficiency, low noise, and easy cable management, you might want to check out the CORSAIR RMx Shift Series RM850x 80 Plus Gold Fully Modular ATX Power Supply. ...great atx 3.0 compatible power supply...it is easy to install and having the side ports for the modular cables made it easier to hook everything up. powers on and works just fine"

    See all customer reviews

    Product Description

    CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary side cable interface to keep all your connections within quick reach, for exceptionally convenient 80 PLUS Gold efficient power. With fully modular micro-fit connections and ATX 3.0 compliance, RMx SHIFT makes clean PC builds and upgrades even easier. RMx SHIFT PSUs use Japanese 105°C-rated electrolytic capacitors, for long life and reliability backed by a ten-year warranty. A 140mm fluid dynamic bearing fan utilizes a specially calculated fan curve for high performance and reliability with low noise, while Zero RPM mode support ensures virtually silent operation at low and medium loads. For quiet, efficient, and accessible power, put an RMx SHIFT Series PSU on your side.
    See all Power Supplies
    Top comment

    "A Power Supply That’s On Your Side...If you are looking for a power supply that offers high efficiency, low noise, and easy cable management, you might want to check out the CORSAIR RMx Shift Series RM850x 80 Plus Gold Fully Modular ATX Power Supply. ...great atx 3.0 compatible power supply...it is easy to install and having the side ports for the modular cables made it easier to hook everything up. powers on and works just fine"

    See all customer reviews

    Product Description

    CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary side cable interface to keep all your connections within quick reach, for exceptionally convenient 80 PLUS Gold efficient power. With fully modular micro-fit connections and ATX 3.0 compliance, RMx SHIFT makes clean PC builds and upgrades even easier. RMx SHIFT PSUs use Japanese 105°C-rated electrolytic capacitors, for long life and reliability backed by a ten-year warranty. A 140mm fluid dynamic bearing fan utilizes a specially calculated fan curve for high performance and reliability with low noise, while Zero RPM mode support ensures virtually silent operation at low and medium loads. For quiet, efficient, and accessible power, put an RMx SHIFT Series PSU on your side.
    See all Power Supplies
    See all Power Supplies
  8. CORSAIR - HXi Series 1000W 80 Plus Platinum Fully-Modular Ultra-Low Noise ATX Power Supply - Black - Front_Zoom
    Top comment

    "Power Supply...Powers everthing with ease. Very quite even when pushing it. ...It supplies power....What can I say? It's a power supply and supplies power. Plenty of overhead for a 4080 Super and 14900K, should last me through future upgrades. "

    See all customer reviews

    Product Description

    CORSAIR HXi Series Fully Modular Ultra-Low Noise Power Supplies deliver exceptional 80 PLUS Platinum efficient power and low-noise fluid dynamic bearing fan performance. ATX 3.0 and PCIe 5.0 compliance, HXi PSUs have every connection needed to power today’s most demanding PC upgrades. Powerful CORSAIR iCUE software enables custom fan curves, monitoring and adjusting power settings, and more thanks to a fully digital platform. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability, backed by a tenyear warranty. Wake your computer faster and consume less power with Modern Standby sleep mode. Zero RPM mode ensures near-silent operation at low and medium loads. The HXi Series puts platinum power at your command.
    See all Power Supplies
    Top comment

    "Power Supply...Powers everthing with ease. Very quite even when pushing it. ...It supplies power....What can I say? It's a power supply and supplies power. Plenty of overhead for a 4080 Super and 14900K, should last me through future upgrades. "

    See all customer reviews

    Product Description

    CORSAIR HXi Series Fully Modular Ultra-Low Noise Power Supplies deliver exceptional 80 PLUS Platinum efficient power and low-noise fluid dynamic bearing fan performance. ATX 3.0 and PCIe 5.0 compliance, HXi PSUs have every connection needed to power today’s most demanding PC upgrades. Powerful CORSAIR iCUE software enables custom fan curves, monitoring and adjusting power settings, and more thanks to a fully digital platform. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability, backed by a tenyear warranty. Wake your computer faster and consume less power with Modern Standby sleep mode. Zero RPM mode ensures near-silent operation at low and medium loads. The HXi Series puts platinum power at your command.
    See all Power Supplies
    See all Power Supplies
  9. CORSAIR - RMx Shift Series RM1200x 80 Plus Gold Fully Modular ATX Power Supply with Modular Side Interface - Black - Front_Zoom
    Top comment

    "Nice power supply. Quite, and supplies power. What more could you ask for....Fantastic power supply."

    See all customer reviews

    Product Description

    CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary side cable interface to keep all your connections within quick reach, for exceptionally convenient 80 PLUS Gold efficient power. With fully modular micro-fit connections and ATX 3.0 compliance, RMx SHIFT makes clean PC builds and upgrades even easier. RMx SHIFT PSUs use Japanese 105°C-rated electrolytic capacitors, for long life and reliability backed by a ten-year warranty. A 140mm fluid dynamic bearing fan utilizes a specially calculated fan curve for high performance and reliability with low noise, while Zero RPM mode support ensures virtually silent operation at low and medium loads. For quiet, efficient, and accessible power, put an RMx SHIFT Series PSU on your side.
    See all Power Supplies
    Top comment

    "Nice power supply. Quite, and supplies power. What more could you ask for....Fantastic power supply."

    See all customer reviews

    Product Description

    CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary side cable interface to keep all your connections within quick reach, for exceptionally convenient 80 PLUS Gold efficient power. With fully modular micro-fit connections and ATX 3.0 compliance, RMx SHIFT makes clean PC builds and upgrades even easier. RMx SHIFT PSUs use Japanese 105°C-rated electrolytic capacitors, for long life and reliability backed by a ten-year warranty. A 140mm fluid dynamic bearing fan utilizes a specially calculated fan curve for high performance and reliability with low noise, while Zero RPM mode support ensures virtually silent operation at low and medium loads. For quiet, efficient, and accessible power, put an RMx SHIFT Series PSU on your side.
    See all Power Supplies
    See all Power Supplies
  10. Thermaltake - Toughpower GX2 600W 80 PLUS Gold ATX Power Supply - Black - Front_Zoom
    Top comment

    "The Toughpower line from Thermaltake is good enough for computer builds for everyday use. Perfect for mid-ATX and Full ATX cases. Thermaltake specializes in power supplies....Good power supply for what I needed...Cheaper power supplies tend to explode but this one is pretty good."

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    Product Description

    The Toughpower GX2 600W is built to deliver 80 PLUS Gold efficiency. It features a 120mm cooling fan, multiple connectors for users to power up the build, and high quality components to help deliver a continuous and stable power with an ambient temperature up to 50°C, while near silent operation and reliable performance are guaranteed. With an ample 5-year warranty, the Toughpower GX2 600W is able to satisfy the market, where PC enthusiasts are looking for a budget-friendly power supply with all the fundamental features.
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    Top comment

    "The Toughpower line from Thermaltake is good enough for computer builds for everyday use. Perfect for mid-ATX and Full ATX cases. Thermaltake specializes in power supplies....Good power supply for what I needed...Cheaper power supplies tend to explode but this one is pretty good."

    See all customer reviews

    Product Description

    The Toughpower GX2 600W is built to deliver 80 PLUS Gold efficiency. It features a 120mm cooling fan, multiple connectors for users to power up the build, and high quality components to help deliver a continuous and stable power with an ambient temperature up to 50°C, while near silent operation and reliable performance are guaranteed. With an ample 5-year warranty, the Toughpower GX2 600W is able to satisfy the market, where PC enthusiasts are looking for a budget-friendly power supply with all the fundamental features.
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    See all Power Supplies
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