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

A power supply is an electrical device that supplies electric power to a load. It is one of the most important components in a computer, as it provides the electric power to all of the components in a computer. The power supply is usually located inside a case, but some high-end power supplies are external. Browse the top-ranked list of high end power supplies below along with associated reviews and opinions.

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  1. CORSAIR - RMx Shift Series RM1000x 80 Plus Gold Fully Modular ATX Power Supply with Modular Side Interface - Black - 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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  2. CORSAIR - RMx Shift Series RM850x 80 Plus Gold Fully Modular ATX Power Supply with Modular Side Interface - Black - Front_Zoom
    Top comment

    "High quality and reliable psu that you can feel comfortable putting in your pc....Future proofs with the ATX 3.0 cable for newer high end cards 4000+"

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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.
    See all Power Supplies
    Top comment

    "High quality and reliable psu that you can feel comfortable putting in your pc....Future proofs with the ATX 3.0 cable for newer high end cards 4000+"

    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.
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  3. CORSAIR - RMx Shift Series RM1200x 80 Plus Gold Fully Modular ATX Power Supply with Modular Side Interface - Black - Front_Zoom
    Top comment

    "This is a great psu! I have an extreme high end pc and it has plenty of power, and is very quiet, love it!...Corsair quality doesn’t need introduction so, the high outlut plus the new 600 w capabilities make all the difference"

    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

    "This is a great psu! I have an extreme high end pc and it has plenty of power, and is very quiet, love it!...Corsair quality doesn’t need introduction so, the high outlut plus the new 600 w capabilities make all the difference"

    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
  4. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black - Front_Zoom
    Top comment

    "Can power most high end PC’s no problem. Necessary for high end Graphics Cards....Bought for my new high end system, works great!!!!"

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    Product Description

    CORSAIR RM850x Series power supplies with EPS12V connectors are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC. RM850x PSUs use only Japanese 105°C capacitors, for long life and reliability backed by a ten-year warranty. A 135mm magnetic levitation bearing fan ensures high performance coupled with low noise. Wake your computer faster and consume less power with support for Modern Standby sleep mode. Zero RPM mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you need only connect the cables your system requires. An RM850x PSU is quiet, efficient and dependable enough to power your high-performance PC for years to come.
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    Top comment

    "Can power most high end PC’s no problem. Necessary for high end Graphics Cards....Bought for my new high end system, works great!!!!"

    See all customer reviews

    Product Description

    CORSAIR RM850x Series power supplies with EPS12V connectors are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC. RM850x PSUs use only Japanese 105°C capacitors, for long life and reliability backed by a ten-year warranty. A 135mm magnetic levitation bearing fan ensures high performance coupled with low noise. Wake your computer faster and consume less power with support for Modern Standby sleep mode. Zero RPM mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you need only connect the cables your system requires. An RM850x PSU is quiet, efficient and dependable enough to power your high-performance PC for years to come.
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    See all Power Supplies
  5. CORSAIR - RMx Series RM1000x 80 PLUS Gold Fully Modular ATX Power Supply - Black - Front_Zoom
    Top comment

    "Easy to setup and powerful to support high end components...Best Power Supply I have ever bought. Perfect for high end PCs"

    See all customer reviews

    Product Description

    CORSAIR RM1000x Series power supplies with EPS12V connectors are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC. RM1000x PSUs use only Japanese 105°C capacitors, for long life and reliability backed by a ten-year warranty. A 135mm magnetic levitation bearing fan ensures high performance coupled with low noise. Wake your computer faster and consume less power with support for Modern Standby sleep mode. Zero RPM mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you need only connect the cables your system requires. An RM1000x PSU is quiet, efficient and dependable enough to power your high-performance PC for years to come.
    See all Power Supplies
    Top comment

    "Easy to setup and powerful to support high end components...Best Power Supply I have ever bought. Perfect for high end PCs"

    See all customer reviews

    Product Description

    CORSAIR RM1000x Series power supplies with EPS12V connectors are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC. RM1000x PSUs use only Japanese 105°C capacitors, for long life and reliability backed by a ten-year warranty. A 135mm magnetic levitation bearing fan ensures high performance coupled with low noise. Wake your computer faster and consume less power with support for Modern Standby sleep mode. Zero RPM mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you need only connect the cables your system requires. An RM1000x PSU is quiet, efficient and dependable enough to power your high-performance PC for years to come.
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    See all Power Supplies
  6. Thermaltake - Toughpower TF1 1550W 80 PLUS Titanium Fully Modular Power Supply - Black - Front_Zoom

    Product Description

    Toughpower TF1 1550W - TT Premium Edition Designed for overclockers, user's with high-end system demands, and more, the Toughpower TF1 Titanium 1550W delivers 80 PLUS Titanium efficiency to satisfy their needs. Besides the critical features like < 30mV low ripple noise, extremely strict Voltage Regulation < ±2%, and Hold up time> 16 milliseconds, Thermaltake also added three vital features to make sure Toughpower TF1 Titanium 1550W can consistently and safely power up the whole system. Firstly, Low Transient Response Secondly, Inrush current < 50 Ampere. Lastly, 12V OCP protection is covered. With all the advantages plus a 10-years warranty, the Toughpower TF1 Titanium 1550W can satisfy the market, where PC enthusiasts are looking for a premium power supply with all the latest features. Turbo Fan Button The turbofan button is designed to maximize airflow intake around 2400±10% RPM to cool down the power supply when it is in a full load. Users can easily push the button behind the PSU panel to use this function. Extra Jumper Accessory The Toughpower TF1 Titanium 1550W comes with an extra jumper to provide electricity to the graphics card without connecting to the motherboard. If you need more than one power supply to power up your system, the extra jumper will help a lot. Low Transient Response The transient response is a measure of how well the power source can hold its output constant in response to load changes. We make sure that we can keep the results comply with 12V ? 1 %, 5V? 3%, and 3.3V ? 5% to avoid PSU output voltage deviation causing subsequent equipment malfunction or even shut down. Inrush current ? 50 Ampere Inrush current is the instantaneous high input current drawn by a power supply or electrical equipment at turn-on. This arises because of the high initial currents required to charge the capacitors, inductors, or transformers. We make sure that the test results are under 50 ampere to avoid damage to the PSU components. 140mm Pulse Width Modulation Fan Featuring a 140mm Pulse Width Modulation Fan with intelligent RPM controls to help guarantee superior cooling performance and near-silent operation. ?30mV Low Ripple Noise All ripples are lower than 30mV on +12V, +5V or +3.3V from 0% to 100% load to ensure a stable operation and keep your performance-critical components to function reliably for longer. Extremely Strict Voltage Regulation ?±2% The voltage regulation, more strict than Intel's standard ±5% for major rails and ±10% for -12V, is set to no more than ±2% for major rails to meet the highest performance. Fully Modular Low-Profile Flat Cable Offers cable selection for users while powering the system at an advantageous voltage. Low-profile flat black cable makes cable management easier, reduces clutter and increases airflow inside the chassis. Premium Japanese 105°C/221°F Capacitors. Providing great durability as well as offering the highest stability, while remaining reliable. High Amperage Single +12V Rail Powerful single +12V rail ensures a stable and reliable supply to other PC components. 80 PLUS Platinum Certified and Intel C6/C7 States Ready Toughpower TF1 Titanium 1550W saves energy through its high energy efficiency up to 94% and is certified to 80 PLUS® Titanium. It has been optimized to work with all generations of Intel's processors to achieve maximum energy saving.
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    Product Description

    Toughpower TF1 1550W - TT Premium Edition Designed for overclockers, user's with high-end system demands, and more, the Toughpower TF1 Titanium 1550W delivers 80 PLUS Titanium efficiency to satisfy their needs. Besides the critical features like < 30mV low ripple noise, extremely strict Voltage Regulation < ±2%, and Hold up time> 16 milliseconds, Thermaltake also added three vital features to make sure Toughpower TF1 Titanium 1550W can consistently and safely power up the whole system. Firstly, Low Transient Response Secondly, Inrush current < 50 Ampere. Lastly, 12V OCP protection is covered. With all the advantages plus a 10-years warranty, the Toughpower TF1 Titanium 1550W can satisfy the market, where PC enthusiasts are looking for a premium power supply with all the latest features. Turbo Fan Button The turbofan button is designed to maximize airflow intake around 2400±10% RPM to cool down the power supply when it is in a full load. Users can easily push the button behind the PSU panel to use this function. Extra Jumper Accessory The Toughpower TF1 Titanium 1550W comes with an extra jumper to provide electricity to the graphics card without connecting to the motherboard. If you need more than one power supply to power up your system, the extra jumper will help a lot. Low Transient Response The transient response is a measure of how well the power source can hold its output constant in response to load changes. We make sure that we can keep the results comply with 12V ? 1 %, 5V? 3%, and 3.3V ? 5% to avoid PSU output voltage deviation causing subsequent equipment malfunction or even shut down. Inrush current ? 50 Ampere Inrush current is the instantaneous high input current drawn by a power supply or electrical equipment at turn-on. This arises because of the high initial currents required to charge the capacitors, inductors, or transformers. We make sure that the test results are under 50 ampere to avoid damage to the PSU components. 140mm Pulse Width Modulation Fan Featuring a 140mm Pulse Width Modulation Fan with intelligent RPM controls to help guarantee superior cooling performance and near-silent operation. ?30mV Low Ripple Noise All ripples are lower than 30mV on +12V, +5V or +3.3V from 0% to 100% load to ensure a stable operation and keep your performance-critical components to function reliably for longer. Extremely Strict Voltage Regulation ?±2% The voltage regulation, more strict than Intel's standard ±5% for major rails and ±10% for -12V, is set to no more than ±2% for major rails to meet the highest performance. Fully Modular Low-Profile Flat Cable Offers cable selection for users while powering the system at an advantageous voltage. Low-profile flat black cable makes cable management easier, reduces clutter and increases airflow inside the chassis. Premium Japanese 105°C/221°F Capacitors. Providing great durability as well as offering the highest stability, while remaining reliable. High Amperage Single +12V Rail Powerful single +12V rail ensures a stable and reliable supply to other PC components. 80 PLUS Platinum Certified and Intel C6/C7 States Ready Toughpower TF1 Titanium 1550W saves energy through its high energy efficiency up to 94% and is certified to 80 PLUS® Titanium. It has been optimized to work with all generations of Intel's processors to achieve maximum energy saving.
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    See all Power Supplies
  7. CORSAIR - HXi Series 1000W 80 Plus Platinum Fully-Modular Ultra-Low Noise ATX Power Supply - Black - Front_Zoom
    Top comment

    "A no-brainer for any of high-end RTX GPU's. Just get it....Great power supple for high end pc"

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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.
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    Top comment

    "A no-brainer for any of high-end RTX GPU's. Just get it....Great power supple for high end pc"

    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.
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    See all Power Supplies
  8. CORSAIR - RM Series RM750 750W ATX 80 PLUS GOLD Certified Fully Modular Power Supply - White - Front_Zoom
    Top comment

    "Noice and reliable wouod reconmend even for a high end build...As this is a high quality PSU i'd reccommend it for anyone."

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    Product Description

    CORSAIR RM Series Fully Modular Ultra-Low Noise Power Supplies deliver consistent 80 PLUS Gold efficient power to your PC. With triple EPS12V cables and four PCIe 8-pin power connectors, RM PSUs have all the connections needed to power today’s most demanding PC upgrades. Industrial-grade, 105°C-rated capacitors deliver superb electrical performance and reliability, backed by a ten-year warranty. Wake your computer faster and consume less power with support for the Modern Standby sleep mode. Zero RPM fan mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you connect only the cables your system requires. RM PSUs are quiet, efficient, and dependable to power your high-performance PC for years to come.
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    Top comment

    "Noice and reliable wouod reconmend even for a high end build...As this is a high quality PSU i'd reccommend it for anyone."

    See all customer reviews

    Product Description

    CORSAIR RM Series Fully Modular Ultra-Low Noise Power Supplies deliver consistent 80 PLUS Gold efficient power to your PC. With triple EPS12V cables and four PCIe 8-pin power connectors, RM PSUs have all the connections needed to power today’s most demanding PC upgrades. Industrial-grade, 105°C-rated capacitors deliver superb electrical performance and reliability, backed by a ten-year warranty. Wake your computer faster and consume less power with support for the Modern Standby sleep mode. Zero RPM fan mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you connect only the cables your system requires. RM PSUs are quiet, efficient, and dependable to power your high-performance PC for years to come.
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    See all Power Supplies
  9. CORSAIR - RM Series RM850 850W ATX 80 PLUS GOLD Certified Fully Modular Power Supply - White - Front_Zoom
    Top comment

    "If one are building a i9 Alder Lake with a high end grapic card system, This is a great buy fuy for the price. ...Such a high quality product. High grade materials used in this power supply. "

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    Product Description

    CORSAIR RM Series Fully Modular Ultra-Low Noise Power Supplies deliver consistent 80 PLUS Gold efficient power to your PC. With triple EPS12V cables and four PCIe 8-pin power connectors, RM PSUs have all the connections needed to power today’s most demanding PC upgrades. Industrial-grade, 105°C-rated capacitors deliver superb electrical performance and reliability, backed by a ten-year warranty. Wake your computer faster and consume less power with support for the Modern Standby sleep mode. Zero RPM fan mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you connect only the cables your system requires. RM PSUs are quiet, efficient, and dependable to power your high-performance PC for years to come.
    See all Power Supplies
    Top comment

    "If one are building a i9 Alder Lake with a high end grapic card system, This is a great buy fuy for the price. ...Such a high quality product. High grade materials used in this power supply. "

    See all customer reviews

    Product Description

    CORSAIR RM Series Fully Modular Ultra-Low Noise Power Supplies deliver consistent 80 PLUS Gold efficient power to your PC. With triple EPS12V cables and four PCIe 8-pin power connectors, RM PSUs have all the connections needed to power today’s most demanding PC upgrades. Industrial-grade, 105°C-rated capacitors deliver superb electrical performance and reliability, backed by a ten-year warranty. Wake your computer faster and consume less power with support for the Modern Standby sleep mode. Zero RPM fan mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you connect only the cables your system requires. RM PSUs are quiet, efficient, and dependable to power your high-performance PC for years to come.
    See all Power Supplies
    See all Power Supplies
  10. CORSAIR - HXi Series HX1000i 80 PLUS Platinum Fully Modular Ultra-Low Noise ATX Power Supply - Black - Front_Zoom
    Top comment

    "Very high quality , super quiet . Bought 4 of them and all are amazing...I'm using it with corsairs optional braided cables, but the included ones seem high quality. I didn't use the pci e high power, but it does come with one for you Nvidia folks"

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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. With three EPS12V connectors, 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.
    See all Power Supplies
    Top comment

    "Very high quality , super quiet . Bought 4 of them and all are amazing...I'm using it with corsairs optional braided cables, but the included ones seem high quality. I didn't use the pci e high power, but it does come with one for you Nvidia folks"

    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. With three EPS12V connectors, 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.
    See all Power Supplies
    See all Power Supplies
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