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Best Buy customers often prefer the following products when searching for small power supplies.

When you're building a computer, the power supply is one of the most important parts. It's what keeps your computer running and it's what you'll be replacing if anything goes wrong.  Power supplies come in different shapes and sizes, with varying amounts of connectors. Browse the top-ranked list of small power supplies below along with associated reviews and opinions.

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  1. EVGA - 650 BP, 80+ BRONZE 650W, 100-BP-0650-K1, Power supply - Front_Zoom
    Top comment

    "It supplies power. It works fine... so far? They are one of the more problematic components generally in my experience. ...Drive was a small size the your normal power supply...It's a power supply...Small in size"

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    Product Description

    Precision is power, as the EVGA BP power supplies add another affordable option to EVGA's 80PLUS Bronze-certified lineup, while reducing the overall length to 120mm - EVGA's shortest ATX power supply to-date! The BP power supplies feature a 115mm hydraulic bearing fan to ensure that staying cool and quiet is no tall order. Combining a full suite of protections and EVGA's 3 Year Limited Warranty, this power supply should be on the short list for your next system build.
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    Top comment

    "It supplies power. It works fine... so far? They are one of the more problematic components generally in my experience. ...Drive was a small size the your normal power supply...It's a power supply...Small in size"

    See all customer reviews

    Product Description

    Precision is power, as the EVGA BP power supplies add another affordable option to EVGA's 80PLUS Bronze-certified lineup, while reducing the overall length to 120mm - EVGA's shortest ATX power supply to-date! The BP power supplies feature a 115mm hydraulic bearing fan to ensure that staying cool and quiet is no tall order. Combining a full suite of protections and EVGA's 3 Year Limited Warranty, this power supply should be on the short list for your next system build.
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    Your price for this item is $74.99
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  2. EVGA SuperNOVA 1000 GT Fully Modular Power Supply - Front_Zoom

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

    "Does not work with AMD high power cable...This was a overall great power supply just didn't work with Corsair high power cable other than that supplies enough power to high-end graphics cards...It powers on...The braided cables are high quality. The power supply is supplying power"

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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

    "Does not work with AMD high power cable...This was a overall great power supply just didn't work with Corsair high power cable other than that supplies enough power to high-end graphics cards...It powers on...The braided cables are high quality. The power supply is supplying power"

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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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    Your price for this item is $169.99
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  3. CORSAIR - HXi Series HX1500i 80 PLUS Platinum Fully Modular Ultra-Low Noise ATX Power Supply - Black - Front_Zoom
    Top comment

    "Banging Power Supply...Great power supply for my 4080! Be aware, this beast runs 12.5 amps!...This Power Supply is a problem solver Recommended!...I know - I'm building a miner, and I blew-up two cheap power supplies. Not this one."

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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.
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    Top comment

    "Banging Power Supply...Great power supply for my 4080! Be aware, this beast runs 12.5 amps!...This Power Supply is a problem solver Recommended!...I know - I'm building a miner, and I blew-up two cheap power supplies. Not this one."

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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.
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    Your price for this item is $374.99
    The previous price was $399.99
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  4. MSI - MPG A850G PCIE 5 850 Watt ATX 80 Plus Gold PSU Power Supply - Black - Front_Zoom
    Top comment

    "Great power supply...Excellent power supply for the rtx 4090 cards works very well and silent 100% recommended...I wanted a new power supply so i didnt have to use the 40 series gpu dongle and this works nicely"

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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...Excellent power supply for the rtx 4090 cards works very well and silent 100% recommended...I wanted a new power supply so i didnt have to use the 40 series gpu dongle and this works nicely"

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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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    Your price for this item is $144.99
    The previous price was $159.99
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  5. MSI - MPG A1000G PCIE 5 1000 Watt ATX 90 Plus Gold PSU Power Supply - Black - Front_Zoom
    Top comment

    "MSI power supply...Msi power supply,perfect for RTX 40 series. The cable was supplied with this power supply....40xx gpu ready power supply pcie5...these ver 3 power supplies do not supply certain power that older boards need and can only be used on the latest and greatest motherboards."

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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 90+ 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

    "MSI power supply...Msi power supply,perfect for RTX 40 series. The cable was supplied with this power supply....40xx gpu ready power supply pcie5...these ver 3 power supplies do not supply certain power that older boards need and can only be used on the latest and greatest motherboards."

    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 90+ 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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    Your price for this item is $199.99
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  6. NZXT C750 ATX Gaming Power Supply - Black - Front_Zoom

    Model: NP-C750M-US
    SKU: 6447511
    Top comment

    "great power supply , powers my system as expected with the gold rating...Easily powers my new build, 0 failures...I typically only buy platinum-rated power supplies, but was in a pinch after returning an alternate power supply I had shipped. "

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    Product Description

    The new C Series power supply from NZXT features safe, reliable power while ensuring optimal efficiency and quieter performance. Manufactured with high-quality components and backed by a 10-year warranty, the C Series power supplies deliver both peace of mind and clean, reliable power to your PC gaming system.
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    Top comment

    "great power supply , powers my system as expected with the gold rating...Easily powers my new build, 0 failures...I typically only buy platinum-rated power supplies, but was in a pinch after returning an alternate power supply I had shipped. "

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    Product Description

    The new C Series power supply from NZXT features safe, reliable power while ensuring optimal efficiency and quieter performance. Manufactured with high-quality components and backed by a 10-year warranty, the C Series power supplies deliver both peace of mind and clean, reliable power to your PC gaming system.
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    Your price for this item is $110.99
    Clearance
    The regular price is $129.99
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  7. CORSAIR - RM Series RM750 750W ATX 80 PLUS GOLD Certified Fully Modular Power Supply - White - Front_Zoom
    Top comment

    "Power source...Excellent power supply… Would recommend. Great color!...Great high performance power supply...Great high performance power supply. Plenty of cables and connections. "

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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

    "Power source...Excellent power supply… Would recommend. Great color!...Great high performance power supply...Great high performance power supply. Plenty of cables and connections. "

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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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    Your price for this item is $129.99
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  8. EVGA - GT Series 850W Auto Eco Mode with FDB Fan 80 Plus Power Supply - Front_Zoom
    Top comment

    "Solid Power Supply...I got this for a replacement of an older 750. It powers my computer as it should. I see how it does after 6 months....small but powerfull...great compact power supply that allows room for extra fan in bottom of case for 120cm fan"

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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

    "Solid Power Supply...I got this for a replacement of an older 750. It powers my computer as it should. I see how it does after 6 months....small but powerfull...great compact power supply that allows room for extra fan in bottom of case for 120cm fan"

    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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    Your price for this item is $159.99
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  9. CORSAIR - CX-M Series CX650M Semi-Modular Low-Noise ATX Power Supply - Black - Front_Zoom
    Top comment

    "This power supply is nice and quiet. Great for a small build. ...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

    "This power supply is nice and quiet. Great for a small build. ...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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    Your price for this item is $79.99
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  10. CORSAIR - 12-Pin GPU Power Cable, Sleeved - Black - Front_Zoom
    Top comment

    "I don't know if it works on other brands of power supplies....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."

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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

    "I don't know if it works on other brands of power supplies....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."

    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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    Your price for this item is $19.99
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