Small Computer Power Supplies
Best Buy customers often prefer the following products when searching for Small Computer Power Supplies.
A computer power supply unit is a component that converts AC power from your wall socket into the stable, consistent DC power that your computer's components need to work. If you're building a new computer or upgrading an old one, you'll want to make sure you get the right power supply unit for your needs. Browse the top-ranked list of small computer power supplies below along with associated reviews and opinions.
CORSAIR - RMe Series RM1200e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.0 Power Supply - Black
Model: CP-9020258-NASKU: 6615249Top comment"Love corsair power supplies....Great power supply so far just put it in my build....Quiet, compact, and super...This PSU was exactly what I needed for my small form factor build. It’s quiet, runs cool, and has enough power for my high-performance components. "
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The CORSAIR RM1200e Fully Modular Low-Noise Power Supply provides quiet, reliable power with 80 PLUS Gold efficiency to your PC. Compliant with the ATX 3.1 power standard from Intel, RMe PSUs have the connections needed to power today’s demanding PC hardware. Industrial-grade, 105°C-rated 100% Japanese Electrolytic capacitors deliver superb electrical performance, backed by a ten-year warranty. Wake your computer faster and consume less power with support for the new Modern Standby sleep mode. Fully modular cables make PC builds easy, as you connect only the cables your system requires. With a more compact 150mm casing, you get more room for your cables to fit comfortably in any power supply compartment.Top comment"Love corsair power supplies....Great power supply so far just put it in my build....Quiet, compact, and super...This PSU was exactly what I needed for my small form factor build. It’s quiet, runs cool, and has enough power for my high-performance components. "
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The CORSAIR RM1200e Fully Modular Low-Noise Power Supply provides quiet, reliable power with 80 PLUS Gold efficiency to your PC. Compliant with the ATX 3.1 power standard from Intel, RMe PSUs have the connections needed to power today’s demanding PC hardware. Industrial-grade, 105°C-rated 100% Japanese Electrolytic capacitors deliver superb electrical performance, backed by a ten-year warranty. Wake your computer faster and consume less power with support for the new Modern Standby sleep mode. Fully modular cables make PC builds easy, as you connect only the cables your system requires. With a more compact 150mm casing, you get more room for your cables to fit comfortably in any power supply compartment.See all Power SuppliesYour price for this item is $204.99Save $30The comparable value price is $234.99
CORSAIR - RMe Series RM1000e 80 PLUS Gold Fully Modular Low-Noise ATX 3.0 and PCIE 5.0 Power Supply PSU - Black
Model: CP-9020264-NASKU: 6589973Top comment"Great product small and compact will plenty of power...New computer...The power supply works great in my updated computer"
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CORSAIR RMe Series Fully Modular Low-Noise Power Supplies provide quiet, reliable power with 80 PLUS Gold efficiency to your PC. With ATX 3.0 and PCIe 5.0 compliance and an array of PCIe 8-pin power connectors, RMe PSUs have the connections needed to power today’s demanding PC hardware. Industrial-grade, 105°C-rated capacitors deliver superb electrical performance, backed by a seven-year warranty. Wake your computer faster and consume less power with support for the new Modern Standby sleep mode. Fully modular cables make PC builds easy, as you connect only the cables your system requires. With a 140mm-long casing that works with nearly any modern case, the CORSAIR RMe Series is steady power for your system.Top comment"Great product small and compact will plenty of power...New computer...The power supply works great in my updated computer"
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CORSAIR RMe Series Fully Modular Low-Noise Power Supplies provide quiet, reliable power with 80 PLUS Gold efficiency to your PC. With ATX 3.0 and PCIe 5.0 compliance and an array of PCIe 8-pin power connectors, RMe PSUs have the connections needed to power today’s demanding PC hardware. Industrial-grade, 105°C-rated capacitors deliver superb electrical performance, backed by a seven-year warranty. Wake your computer faster and consume less power with support for the new Modern Standby sleep mode. Fully modular cables make PC builds easy, as you connect only the cables your system requires. With a 140mm-long casing that works with nearly any modern case, the CORSAIR RMe Series is steady power for your system.See all Power SuppliesYour price for this item is $154.99Save $25The comparable value price is $179.99
CORSAIR - HXi Series 1000W 80 Plus Platinum Fully-Modular Ultra-Low Noise ATX Power Supply - Black
Model: CP-9020259-NASKU: 6544995Top comment"Powerful and Compact...I would highly recommend powers my 4090...Great Power Supply!!...I would recommend Corsair power supplies to anyone. These are the best power supplies I have ever seen or owned and I have worked with computers for around thirty years and built my own high end computers and servers for most of that time."
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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.Top comment"Powerful and Compact...I would highly recommend powers my 4090...Great Power Supply!!...I would recommend Corsair power supplies to anyone. These are the best power supplies I have ever seen or owned and I have worked with computers for around thirty years and built my own high end computers and servers for most of that time."
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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 SuppliesYour price for this item is $259.99Save $30The comparable value price is $289.99
MSI - MAG A850GL PCIE5 850W ATX 3.1 &PCIe 5.1 Ready Full Modular 80 Plus Gold Gaming Power Supply - Black
Model: MAG A850GL PCIE5SKU: 6562432Top comment"Great power, great power cords...I love the neat power cords and the compact design. Its simple, works flawlessly and had impeccable shipping times....Nice power supply...Good quality power supply for my computer. Good value with the price."
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The MAG A850GL PCIE 5 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 A850GL PCIE 5 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 A850GL PCIE 5 L epitomizes power, space-efficiency, cable harmony, and safety. A pinnacle of technology in the MAG series, empowering triumphant gaming while embodying its spirit.Top comment"Great power, great power cords...I love the neat power cords and the compact design. Its simple, works flawlessly and had impeccable shipping times....Nice power supply...Good quality power supply for my computer. Good value with the price."
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The MAG A850GL PCIE 5 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 A850GL PCIE 5 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 A850GL PCIE 5 L epitomizes power, space-efficiency, cable harmony, and safety. A pinnacle of technology in the MAG series, empowering triumphant gaming while embodying its spirit.See all Power SuppliesYour price for this item is $121.99Save $8The comparable value price is $129.99
Thermaltake - SMART 700W ATX 80 Plus Power Supply - Black
Model: PS-SPD-0700NPCWUS-1SKU: 6339087Top comment"It's a power supply. Powers stuff....It does its job. Power supplies don't turn me on, just the computer....Thermalake computer power supply...Thermalake makes quality power supplies. I have used them for many computers."
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Power up gaming desktops with this Thermaltake Smart power supply. A continuous 700W power output keeps demanding computer setups energized, while the industry-grade power, voltage and short-circuit protections safeguard sensitive components. This Thermaltake Smart power supply has an embedded 120mm cooling fan that disperses heat efficiently without producing distracting noise.Top comment"It's a power supply. Powers stuff....It does its job. Power supplies don't turn me on, just the computer....Thermalake computer power supply...Thermalake makes quality power supplies. I have used them for many computers."
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Power up gaming desktops with this Thermaltake Smart power supply. A continuous 700W power output keeps demanding computer setups energized, while the industry-grade power, voltage and short-circuit protections safeguard sensitive components. This Thermaltake Smart power supply has an embedded 120mm cooling fan that disperses heat efficiently without producing distracting noise.See all Power SuppliesYour price for this item is $59.99
CORSAIR - CX-M Series CX650M Semi-Modular Low-Noise ATX Power Supply - Black
Model: CP-9020221-NASKU: 6459240Top comment"Computer power supply...Power supply works very well and the price is right....Power Supply...Works better with newer computers."
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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.Top comment"Computer power supply...Power supply works very well and the price is right....Power Supply...Works better with newer computers."
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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.See all Power SuppliesYour price for this item is $74.99Save $15The comparable value price is $89.99
CORSAIR - CX-M Series CX750M Semi-Modular Low-Noise ATX Power Supply - Black
Model: CP-9020222-NASKU: 6459241Top comment"Reliable choice for moderate power needs...This is my standard power supply for most of my computers and I have not had to replacement one in the last 4 years of using them. ...affordable power supply...the power supply is very efficient at keeping my computers power good and helps it a lot"
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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.Top comment"Reliable choice for moderate power needs...This is my standard power supply for most of my computers and I have not had to replacement one in the last 4 years of using them. ...affordable power supply...the power supply is very efficient at keeping my computers power good and helps it a lot"
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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.See all Power SuppliesYour price for this item is $84.99Save $15The comparable value price is $99.99
CORSAIR - RMe Series RM750e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.1 Power Supply - Black
Model: CP-9020295-NASKU: 6611985Top comment"Ultra Quiet Power Supply!...The price at the time of purchase (early 2025) is great compared to other similar power supplies....very good power supply. has all the thing you need to power your PC even for the 50 series Graphics cards. very compact."
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CORSAIR RMe Series Fully Modular Low-Noise Power Supplies provide quiet, reliable power with Cybenetics Gold efficiency to your PC. The modular cables make PC builds easy, as you connect only the cables your system requires. With ATX 3.1 and PCIe 5.1 compliance with inclusion of native 12V-2x6 connnector and cable, and an array of PCIe 8-pin power connectors, RMe PSUs have the connections needed to power today’s demanding PC hardware. Industrial-grade, 105°C-rated capacitors deliver superb electrical performance, backed by a seven-year warranty. With a 140mm-long casing that works with nearly any modern case, the CORSAIR RMe Series is steady power for your system.Top comment"Ultra Quiet Power Supply!...The price at the time of purchase (early 2025) is great compared to other similar power supplies....very good power supply. has all the thing you need to power your PC even for the 50 series Graphics cards. very compact."
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CORSAIR RMe Series Fully Modular Low-Noise Power Supplies provide quiet, reliable power with Cybenetics Gold efficiency to your PC. The modular cables make PC builds easy, as you connect only the cables your system requires. With ATX 3.1 and PCIe 5.1 compliance with inclusion of native 12V-2x6 connnector and cable, and an array of PCIe 8-pin power connectors, RMe PSUs have the connections needed to power today’s demanding PC hardware. Industrial-grade, 105°C-rated capacitors deliver superb electrical performance, backed by a seven-year warranty. With a 140mm-long casing that works with nearly any modern case, the CORSAIR RMe Series is steady power for your system.See all Power SuppliesYour price for this item is $114.99
EVGA - GT Series 850W Auto Eco Mode with FDB Fan 80 Plus Power Supply
Model: 220-GT-0850-Y1SKU: 6481207Top 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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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.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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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 SuppliesYour price for this item is $97.99Save $52The comparable value price is $149.99
MSI - MAG A750GL PCIE 5 750W ATX 3.1 Full Modular 80 Plus Gold Gaming Power Supply - Black
Model: MAG A750GL PCIE5SKU: 6562433Top comment"This power supply is compact and user-friendly, equipped with all the essential cables. ...It does its job. It provides power to the other component's of my computer"
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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.Top comment"This power supply is compact and user-friendly, equipped with all the essential cables. ...It does its job. It provides power to the other component's of my computer"
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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.See all Power SuppliesYour price for this item is $109.99
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