It can be tough to find a great reliable budget power supply. Therefore, we have compiled a list of the best reliable and efficient PC gaming power supplies under $50. Additionally, the power supplies listed below are all 80 plus certified. They are also constructed to perform great for almost any computer build that requires a 450W to 620W PSU.

The Heart of a PC Build

While the CPU is considered the brain of a PC, the power supply is the heart that provides power to all components of a PC. If you have a bad heart, then other organs of the body wouldn’t receive sufficient oxygen-rich blood. This can cause organs to not perform properly or even worst cause them to become damaged. This same principle applies to power supplies. A bad PSU will cause other components of a PC to not receive adequate power. This will lead to poor performance and even damage to those components. Therefore, one could even say that the power supply is the most important hardware of a PC.

Two most important factors when buying a power supply:

Reliability

A power supply must be reliable. Meaning it is constructed of high-quality parts for better durability and dependability. It should also feature the latest heavy-duty protections to ensure the safety of other PC components.

Efficiency

A power supply must have at the very least an 80 Plus White efficiency rating. An efficiency rating of 80 plus means that a power supply is at the very least 80% efficient at 20%, 50% and 100% under typical loads.

80 Plus Efficiency Rating:

  1. ROSEWILL Glacier Series Power Supply

ROSEWILL Computer Modular Power Supply/PSU, Glacier Series 500 Watt 80 Plus Bronze Certified PSU with Silent 135mm Fan with Auto Fan Speed Control, 3 Year Warranty
Rosewill is another one of those brands that aren’t too popular, yet have some great products once for the budget-oriented crowd. An excellent example is their Glacier Series 500W power supply, which has some great features and is 80+ Bronze rated.

At 500 watts, it should be plenty for just about any budget or mid-range build. It won’t power the latest and greatest graphics cards, but you don’t have one of them if you’re on a budget. With a single 12V rail, it’s ideal for performance, and it comes with two 6+2pin connectors – ready for SLI or Crossfire.

An excellent addition is the silent 135 fan which has auto speed control, and a design that reduces the temperature inside the PSU. Last but certainly not least, this is a semi-modular design, which means that any cables you don’t need, are not included.

ROSEWILL Glacier Series Power Supply Specifications:
Efficiency Certification Rating80 Plus Bronze
TypeATX12V
+12V RailsSingle
Maximum Power500W
Dimensions6.2 x 5.9 x 3.2 inches
Warranty3 years
ModularYes semi
Connectors1x 20+4pin, 1x 4+4pin; Modular: 2x 6+2pin PCIe, 5x SATA, 4x 4pin peripheral, 1x Floppy
ProtectionsOVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), and SCP (Short Circuit Protection)
Pros:

Plus ButtonSemi-modular design leaves little to no unnecessary cables

Plus ButtonSLI and CrossFire ready

Plus ButtonSilent fan with auto fan speed control

Plus ButtonActive-PFC with input voltage adjustment

Cons:

Minus Button500W may not be enough for SLI/Crossfire

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  1. EVGA 500 W1 Power Supply

EVGA 500 W1, 80+ WHITE 500W, 3 Year Warranty, Power Supply 100-W1-0500-KR, Black
From their budget options to the higher end models, EVGA is famous for their excellent and very durable power supplies. The EVGA 500 W1 is a 500W power supply that should be more than plenty for a budget or mid-range PC build.

This is an 80+ White power supply, which guarantees at least 80% efficiency under typical loads. The W1, even though a budget model, comes with quite a lot of features, including over voltage, under voltage, over current and over power protection, as well as short circuit protection.

You’re getting a single +12V rail for the best power output, as well as rail stability, and the PSU is rated in continuous power, instead of peak power which is common for many budget models. This is where you want to be if you’re aiming at building your PC now and keeping it running for a good while without replacing the PSU.

EVGA 500 W1 Specifications:
Efficiency Certification Rating80 Plus White
TypeATX12V
+12V RailsSingle
Maximum Power500W
Dimensions85mm x 150mm x 140mm
Warranty3 years
ModularNo
Connectors1x ATX, 1x EPS, 2x PCIe, 6x SATA, 3x 4-pin peripheral, 1x floppy, 1x AC
ProtectionsOVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), and SCP (Short Circuit Protection)
Pros:

Plus ButtonSingle 12V rail for maximum power and efficiency

Plus ButtonProvides 85% efficiency under typical loads

Plus ButtonReliable and efficient

Plus Button120mm sleeve bearing fan

Plus ButtonHeavy-duty protection that keeps components safe

Cons:

Minus ButtonNot modular

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  1. Cooler Master MWE 500

Cooler Master MWE 500 Bronze, 80+ Bronze Certified 500W Power Supply, 3 Year WarrantyThe Cooler Master MWE is a 500W power supply that is perfect for any budget to mid-range PC build. It has an 80 Plus Bronze efficiency rating, meaning it will provide at least 82% efficiency under typical loads.

Additionally, this power supply has numerous heavy-duty protections and features a 3-year warranty. It has all to connectors needed for a PC build, a quiet fan, and a great design. In short, the Cooler Master MWE 500 provides exceptional performance for a budget PSU.

Cooler Master MWE 500 Specifications:
Efficiency Certification Rating80 Plus Bronze
TypeIntel ATX 12V V2.31
+12V Railssingle
Maximum Power500W
Dimensions5.90 x 5.50 x 3.39 inches
Warranty3 years
Modularno
Connectors1 x MB 20+4 Pin, 1 x CPU 12V 4+4 Pin, 4 x SATA, 3 x Peripheral 4 Pin, 1 x FDD Cable 4 Pin, and 2 x PCI-e 6+2 Pin
ProtectionsOVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), and SCP (Short Circuit Protection)
Pros:

Plus ButtonSingle 12V rail for maximum power and efficiency

Plus ButtonProvides at least 85% efficiency under typical loads

Plus Button120mm sleeve bearing

Plus Button160,000 hours life expectancy

Plus ButtonHeavy-duty protection that keeps components safe

Cons:

Minus ButtonNot modular

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  1. Thermaltake Smart Power Supply

Thermaltake SMART 600W ATX 12V V2.3/EPS 12V 80 PLUS Certified Active PFC Power Supply PS-SPD-0600NPCWUS-W

The Thermaltake Smart is a 600W power supply that can be used in most budget to some high-end PC builds. It has an 80+ White efficiency rating, meaning that it will run at 80% efficiency under typical load. Additionally, this power supply has all the important protections to ensure the safety of your PC components. It also features an embedded intelligent cooling fan and a quiet dynamic fan bearing. If you’re looking for a great 600W power supply under $50, look no further than the Thermaltake Smart power supply.

Thermaltake Smart Specifications:
Efficiency Certification Rating80 Plus White
TypeIntel ATX 12V 2.3
+12V Rails1
Maximum Power600W
Dimensions3.39 x 5.91 x 5.51 inches
Warranty3 years
ModularNo
Connectors1 x MB 20+4 Pin, 1 x CPU 12V 4+4 Pin, 4 x SATA, 3 x Peripheral 4 Pin, 1 x FDD Cable 4 Pin, and 2 x PCI-e 6+2 Pin
Protections(OPP) Over Power Protection, (OVP) Over Voltage Protection, and (SCP) Short Circuit Protection
Pros:

Plus ButtonEfficiency of up to 86%

Plus ButtonFluid dynamic fan bearing

Plus ButtonEmbedded intelligent cooling fan

Plus ButtonHeavy-duty protection that keeps components safe

Cons:

Minus ButtonNot modular

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  1. Corsair VS Series VS550 Power Supply

CORSAIR VS Series, VS550, 550 Watt, 80+ White Certified, Non-Modular Power SupplyThe Corsair VS550 is a 550W power supply with a sophisticated design that provides great performance and efficiency. This power supply is very efficient and has an 80 Plus White Certification. It is compatible with the latest ATX12V v2.31/EPS 2.92 standards and is backward compatible with older systems.

Additionally, this power supply features a 120mm thermally controlled sleeve bearing fan. Which allows it to maintain a great 40 degrees Celsius temperature even when at max power output. The Corsair VS550 also has numerous protections to maintain the safety of critical system components. This makes it one of the best power supply you can buy for under $50.

Corsair VS550 Specifications:
Efficiency Certification Rating80 Plus White
TypeATX12V v2.31 / EPS 2.92
+12V RailsSingle
Maximum Power550W
Dimensions5.51 x 5.91 x 3.39 inches
Warranty3 years
ModularNo
Connectors1 x ATX Connector, 1 x EPS Connector, 2 x Four Pin Peripheral Connector, 2 x PCIe Connector, 7 x SATA Connector, 1 x Floppy Connector
ProtectionsOVP (Over Voltage Protection), UVP (Under Voltage Protection), OTP (Over Temperature Protection), OPP (Over Power Protection), and SCP (Short Circuit Protection)
Pros:

Plus ButtonSingle 12V rail for maximum power and efficiency

Plus ButtonProvides 80% efficiency under typical loads

Plus ButtonMax power output at only 40 Degrees Celsius temperature rating

Plus ButtonQuiet thermally controlled fan

Plus ButtonHeavy-duty protection that keeps components safe

Cons:

Minus ButtonNot modular

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