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

Power supplies are the backbone of a computer system. They convert alternating current (AC) to direct current (DC), which then powers the computer's components. Here are some great large power supplies.

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  1. EVGA - 850W Modular BQ Power Supply - Black - Front_Zoom

    Model: 110-BQ-0850-V1
    SKU: 5594501
    Top comment

    "Excellent power supply...This one of the best power supply I've ever owned. Powers my gtx 970 with no problem....BEST POWER SUPPLY...one of the best power supplies I had ever bought :)"

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    Product Description

    Power your customized desktop computer with this EVGA power supply. The large built-in fan prevents it from overheating during heavy use, and the sturdy box construction makes it easy to mount externally or install in your computer shell. This EVGA power supply comes with all the cords needed for installation.
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    Top comment

    "Excellent power supply...This one of the best power supply I've ever owned. Powers my gtx 970 with no problem....BEST POWER SUPPLY...one of the best power supplies I had ever bought :)"

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    Product Description

    Power your customized desktop computer with this EVGA power supply. The large built-in fan prevents it from overheating during heavy use, and the sturdy box construction makes it easy to mount externally or install in your computer shell. This EVGA power supply comes with all the cords needed for installation.
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    See all Power Supplies
  2. MSI - A750GL PCIE 5 750W ATX 3.0 Full Modular 80 Plus Gold Gaming Power Supply - Black - Front_Zoom
    Top comment

    "This power supply is compact and user-friendly, equipped with all the essential cables. ...A little large for my Micro ATX case but works well. Electricity bill seems to have gone down from when I had a bronze rated psu"

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    Product Description

    The MAG A750GL PCIE5 power supply overflows with potency, a hallmark of the MAG series that aligns with gamers' pursuit of excellence. Infused with military-inspired elements, these gaming products have evolved into symbols of resilience. Efficiency matters, impacting performance and power use. The 80 PLUS Gold certification pledges lower energy consumption and higher efficiency. Compact and efficient, the A750GL PCIE5 optimizes space and cable organization. Unneeded connectors are eliminated, reducing clutter and simplifying builds. Unused cables find refuge in the included cable pack. Cable organization, a common woe, finds a solution. Flat cables streamline management, enhancing airflow and orderliness. The power supply's fan employs fluid dynamic bearing, balancing cooling and noise. DC to DC and Full Bridge merge for higher efficiency and stable voltage, adapting swiftly to different needs. Sufficient power reigns, as the single rail supply caters to high-performance GPUs and CPUs with 5 CPU & PCI-E slots. Safety is paramount. Protective mechanisms ensure stability, empowering worry-free operation. In essence, the MAG A750GL PCIE5 epitomizes power, space-efficiency, cable harmony, and safety. A pinnacle of technology in the MAG series, empowering triumphant gaming while embodying its spirit.
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    Top comment

    "This power supply is compact and user-friendly, equipped with all the essential cables. ...A little large for my Micro ATX case but works well. Electricity bill seems to have gone down from when I had a bronze rated psu"

    See all customer reviews

    Product Description

    The MAG A750GL PCIE5 power supply overflows with potency, a hallmark of the MAG series that aligns with gamers' pursuit of excellence. Infused with military-inspired elements, these gaming products have evolved into symbols of resilience. Efficiency matters, impacting performance and power use. The 80 PLUS Gold certification pledges lower energy consumption and higher efficiency. Compact and efficient, the A750GL PCIE5 optimizes space and cable organization. Unneeded connectors are eliminated, reducing clutter and simplifying builds. Unused cables find refuge in the included cable pack. Cable organization, a common woe, finds a solution. Flat cables streamline management, enhancing airflow and orderliness. The power supply's fan employs fluid dynamic bearing, balancing cooling and noise. DC to DC and Full Bridge merge for higher efficiency and stable voltage, adapting swiftly to different needs. Sufficient power reigns, as the single rail supply caters to high-performance GPUs and CPUs with 5 CPU & PCI-E slots. Safety is paramount. Protective mechanisms ensure stability, empowering worry-free operation. In essence, the MAG A750GL PCIE5 epitomizes power, space-efficiency, cable harmony, and safety. A pinnacle of technology in the MAG series, empowering triumphant gaming while embodying its spirit.
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    See all Power Supplies
  3. 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."

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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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    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.
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    See all Power Supplies
  4. CORSAIR - 2’ Premium Individually Sleeved 12+4pin PCIe Gen 5 Type-4 600W 12VHPWR Cable - Black - Front_Zoom
    Top comment

    "Its a good alternative for power supplies that do no have a 12VHP connection....Powers up FE 3080 no problem...Worked great to power up a new to me Founders Edition 3080."

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    Product Description

    For those who want to connect the latest PCIe 5.0 GPUs without creating extra clutter, the official CORSAIR Premium Individually Sleeved 600W PCIe 5.0 / Gen 5 12VHPWR PSU Cable is a must-have for modern PC builds. This premium cable reliably delivers power from a CORSAIR Type-4 PSU to the most advanced PCIe Gen 5 graphics cards, without the need for a 12+4pin adapter. The cable is usable with any Type-4 CORSAIR power supply via a dual 8-pin PCIe connection. Each flexible triple mesh paracord cable is individually sleeved and held together by an adjustable, interconnecting cable comb, adding a clean, professional look to your build.
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    Top comment

    "Its a good alternative for power supplies that do no have a 12VHP connection....Powers up FE 3080 no problem...Worked great to power up a new to me Founders Edition 3080."

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    Product Description

    For those who want to connect the latest PCIe 5.0 GPUs without creating extra clutter, the official CORSAIR Premium Individually Sleeved 600W PCIe 5.0 / Gen 5 12VHPWR PSU Cable is a must-have for modern PC builds. This premium cable reliably delivers power from a CORSAIR Type-4 PSU to the most advanced PCIe Gen 5 graphics cards, without the need for a 12+4pin adapter. The cable is usable with any Type-4 CORSAIR power supply via a dual 8-pin PCIe connection. Each flexible triple mesh paracord cable is individually sleeved and held together by an adjustable, interconnecting cable comb, adding a clean, professional look to your build.
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    See all Power Supplies
  5. MSI MPG A850G PCIE 5 - Full Modular – 80 Plus Gold 850W - 100% Japanese 105°C Capacitors – ATX 3.0 Gaming Power Supply - Black - Front_Zoom
    Top comment

    "Great power supply, very high performance...Great power supply, very high performance, nice design, perfect for medium to large cases...Good power supply...Powers all PC components wonderfully for a great price!"

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    Product Description

    The MPG gaming power supply is equipped to support the latest NVIDIA GeForce RTX 4000 Series and AMD GPUs. The efficiency of your power supply can make a world of a difference; it's why we offer a reliable 80+ Gold power proficiency PSU and a 10-year limited warranty guaranteeing a long term reliable solution for your gaming system. Organizing cables is often the most bothersome part of building a PC. With the MPG gaming power supply's fully modular design, we've given you the option of what cables you'll need for your system and defeat the clutter. With that in mind we've gone with a flat black design to further help you create the most beautiful cable managed pc system around. The remaining cables can be nicely stored away in the included cable bag. The MPG gaming power supply comes in 160mm and 150mm wide dimensions to ensure a comfortable fit in more pc chassis so it can continue to maintain a comfortable space for your cable management needs.
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    Top comment

    "Great power supply, very high performance...Great power supply, very high performance, nice design, perfect for medium to large cases...Good power supply...Powers all PC components wonderfully for a great price!"

    See all customer reviews

    Product Description

    The MPG gaming power supply is equipped to support the latest NVIDIA GeForce RTX 4000 Series and AMD GPUs. The efficiency of your power supply can make a world of a difference; it's why we offer a reliable 80+ Gold power proficiency PSU and a 10-year limited warranty guaranteeing a long term reliable solution for your gaming system. Organizing cables is often the most bothersome part of building a PC. With the MPG gaming power supply's fully modular design, we've given you the option of what cables you'll need for your system and defeat the clutter. With that in mind we've gone with a flat black design to further help you create the most beautiful cable managed pc system around. The remaining cables can be nicely stored away in the included cable bag. The MPG gaming power supply comes in 160mm and 150mm wide dimensions to ensure a comfortable fit in more pc chassis so it can continue to maintain a comfortable space for your cable management needs.
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    See all Power Supplies
  6. CORSAIR - 12-Pin GPU Power Cable, Sleeved - Black - Front_Zoom
    Top comment

    "Corsair 12-pin GPU Power Cable...Also, as 49 out of 50 reviewers already know (at the time of writing), it only works with type 3 and 4 Corsair modular power supplies. Other power supplies may have a different pin-out, and you obviously don't want electricity going places it shouldn't....I don't know if it works on other brands of power supplies."

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    Product Description

    The CORSAIR 12-Pin GPU Power Cable (CP-8920274) connects any CORSAIR Type-3/Type-4 modular power supply to any GPU by converting two 8-pin PSU power connectors to a single 12-pin GPU power connector, ready to power your new NVIDIA® GeForce RTX™ 30 Series GPU. 660mm Black sleeved cables allow for easy cable management and match the aesthetic of any build.
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    Top comment

    "Corsair 12-pin GPU Power Cable...Also, as 49 out of 50 reviewers already know (at the time of writing), it only works with type 3 and 4 Corsair modular power supplies. Other power supplies may have a different pin-out, and you obviously don't want electricity going places it shouldn't....I don't know if it works on other brands of power supplies."

    See all customer reviews

    Product Description

    The CORSAIR 12-Pin GPU Power Cable (CP-8920274) connects any CORSAIR Type-3/Type-4 modular power supply to any GPU by converting two 8-pin PSU power connectors to a single 12-pin GPU power connector, ready to power your new NVIDIA® GeForce RTX™ 30 Series GPU. 660mm Black sleeved cables allow for easy cable management and match the aesthetic of any build.
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    See all Power Supplies
  7. EVGA SuperNOVA 1000 GT Fully Modular Power Supply - Front_Zoom

    Model: 220-GT-1000-X1
    SKU: 6528734
    Top comment

    "It powers my supplies, but i think its supposed to supply me with power..? ...Its a power supply it supplies the power i need!!!"

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    Product Description

    Introducing the EVGA SuperNOVA GT Series of power supplies - the newest addition to the outstanding line of EVGA Power Supplies. Featuring 80 Plus Gold certification, 100% Japanese capacitors, a fluid dynamic bearing fan, and a fully modular design, this power supply is built for long-term usage and durability. Building upon EVGA's line of 80 Plus Gold rated power supplies, the EVGA GT Series combines all these features at a great price.
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    Top comment

    "It powers my supplies, but i think its supposed to supply me with power..? ...Its a power supply it supplies the power i need!!!"

    See all customer reviews

    Product Description

    Introducing the EVGA SuperNOVA GT Series of power supplies - the newest addition to the outstanding line of EVGA Power Supplies. Featuring 80 Plus Gold certification, 100% Japanese capacitors, a fluid dynamic bearing fan, and a fully modular design, this power supply is built for long-term usage and durability. Building upon EVGA's line of 80 Plus Gold rated power supplies, the EVGA GT Series combines all these features at a great price.
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    See all Power Supplies
  8. EVGA - SuperNOVA 1300W GT Power Supply - Front_Zoom

    Model: 220-GT-1300-X1
    SKU: 6500780
    Top comment

    "Great power supply...Will do everything you need it too. Powers my 4070 to my 14900k and everything else great....Power house...This power supply really is a beast. It is powering a 13700K with 3090Ti, no issues at all. "

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    Product Description

    Introducing the EVGA SuperNOVA GT Series of power supplies - the newest addition to the outstanding line of EVGA Power Supplies. Featuring 80 Plus Gold certification, 100% Japanese capacitors, a fluid dynamic bearing fan, and a fully modular design, this power supply is built for long-term usage and durability. Building upon EVGA's line of 80 Plus Gold rated power supplies, the EVGA GT Series combines all these features at a great price.
    See all Power Supplies
    Top comment

    "Great power supply...Will do everything you need it too. Powers my 4070 to my 14900k and everything else great....Power house...This power supply really is a beast. It is powering a 13700K with 3090Ti, no issues at all. "

    See all customer reviews

    Product Description

    Introducing the EVGA SuperNOVA GT Series of power supplies - the newest addition to the outstanding line of EVGA Power Supplies. Featuring 80 Plus Gold certification, 100% Japanese capacitors, a fluid dynamic bearing fan, and a fully modular design, this power supply is built for long-term usage and durability. Building upon EVGA's line of 80 Plus Gold rated power supplies, the EVGA GT Series combines all these features at a great price.
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    See all Power Supplies
  9. EVGA - GT Series 850W Auto Eco Mode with FDB Fan 80 Plus Power Supply - Front_Zoom
    Top comment

    "Great product for a decent price for a 850 watt power supply. It runs quiet and powers all my hardware....Best power supply...This powers my new gaminv pc with a 4070 and has no issues"

    See all customer reviews

    Product Description

    Introducing the EVGA SuperNOVA GT Series of power supplies - the newest addition to the outstanding line of EVGA Power Supplies. Featuring 80 Plus Gold certification, 100% Japanese capacitors, a fluid dynamic bearing fan, and a fully modular design, this power supply is built for long-term usage and durability. Building upon EVGA's line of 80 Plus Gold rated power supplies, the EVGA GT Series combines all these features at a great price.
    See all Power Supplies
    Top comment

    "Great product for a decent price for a 850 watt power supply. It runs quiet and powers all my hardware....Best power supply...This powers my new gaminv pc with a 4070 and has no issues"

    See all customer reviews

    Product Description

    Introducing the EVGA SuperNOVA GT Series of power supplies - the newest addition to the outstanding line of EVGA Power Supplies. Featuring 80 Plus Gold certification, 100% Japanese capacitors, a fluid dynamic bearing fan, and a fully modular design, this power supply is built for long-term usage and durability. Building upon EVGA's line of 80 Plus Gold rated power supplies, the EVGA GT Series combines all these features at a great price.
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    See all Power Supplies
  10. CORSAIR - CX-M Series CX650M Semi-Modular Low-Noise ATX Power Supply - Black - Front_Zoom
    Top comment

    "Corsair Power Supply...Works excellent amazing product. strong power supply....POWER SUPPLY...Great power supply, very smooth, itbworks great easy to install."

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    Product Description

    CORSAIR CX-M Series Low-Noise Power Supplies offer 80 PLUS Bronze efficiency and semi-modular cabling for reliable, low-noise operation. With Dual EPS12V cables and two/four PCIe 8-pin power connectors, CX-M PSUs have all the connections needed to power today’s most demanding PC upgrades. Japanese 105°C-rated capacitors deliver superb electrical performance and reliability for your system, backed by a five-year warranty. Robust DC-DC conversion ensures clean, consistent power for all your components and peripherals. With a compact 140mm size allowing for great flexibility in build configurations, CX-M Series power supplies deliver reliable power for nearly any build.
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    Top comment

    "Corsair Power Supply...Works excellent amazing product. strong power supply....POWER SUPPLY...Great power supply, very smooth, itbworks great easy to install."

    See all customer reviews

    Product Description

    CORSAIR CX-M Series Low-Noise Power Supplies offer 80 PLUS Bronze efficiency and semi-modular cabling for reliable, low-noise operation. With Dual EPS12V cables and two/four PCIe 8-pin power connectors, CX-M PSUs have all the connections needed to power today’s most demanding PC upgrades. Japanese 105°C-rated capacitors deliver superb electrical performance and reliability for your system, backed by a five-year warranty. Robust DC-DC conversion ensures clean, consistent power for all your components and peripherals. With a compact 140mm size allowing for great flexibility in build configurations, CX-M Series power supplies deliver reliable power for nearly any build.
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    See all Power Supplies
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