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Power Supplies under $50

All Power Supplies

10 power supplies under $50 from Rosewill and Esgaming. Most cost $36 to $49, and half cost less than $44.

All filtersFilters×
BrandRosewill4Esgaming2ASRock1Evounic1MSI1Thermaltake1
Watts650650035501
EfficiencyBronze3Gold3
FormATX7
ModularNon-modular5Fully modular2Semi-modular1
Clear allShow 10 Power Supplies
10 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
MSISpec score 8.7

650 Watts, Gold, ATX, Non-modular

+650W output in a standard ATX form factor
+80 PLUS Gold efficiency certification
+Low noise operation
−Non-modular design means cables cannot be removed
$42.74-39%List: $69.99
as of 11/04/2026 00:18 PST - Details
Rosewill

550 Watts, Non-modular

+550W output for mid-range builds
+Active PFC design for power factor correction
+Low-noise design for quieter operation
−Non-modular design means all cables are fixed
$35.98-22%List: $45.99
as of 11/04/2026 07:06 PST - Details
RosewillSpec score 8.1

650 Watts, Bronze, ATX, Semi-modular

+650 watts: the most watts of the 10 here
−Bronze: 3 of the 6 here have a higher efficiency
$49.96-17%List: $59.99
as of 11/04/2026 07:06 PST - Details
Thermaltake

500 Watts, ATX

+500W output for mid-range builds
+ATX form factor fits standard cases
+120mm fan for cooling
$39.99-11%List: $44.99
as of 11/04/2026 08:06 PST - Details
RosewillSpec score 8.7

650 Watts, Gold, ATX, Non-modular

+650W output for mid-range builds
+ATX 3.1 compatible for current PC standards
+Includes a 16-pin PCIe 5.1 GPU connector
−Non-modular design means all cables are fixed
$47.97-20%List: $59.99
as of 11/04/2026 07:06 PST - Details
ASRockSpec score 8.1

650 Watts, Bronze, ATX, ATX 3.1

+650W output suits mid-range builds
+80 Plus Bronze certified efficiency
+ATX 3.1 ready for newer hardware
−Not fully modular, so cable management is more limited
$44.99
as of 11/03/2026 21:56 PST - Details
EvounicSpec score 8.1

650 Watts, Bronze, ATX, Non-modular

+650W output in a standard ATX form factor
+80 PLUS Bronze efficiency certification
+Non-modular design with fixed cables
−Non-modular design means cables cannot be removed
$39.96
as of 11/03/2026 22:54 PST - Details
Esgaming

650 Watts, ATX, Non-modular

+650 watts for mid-range builds
+Includes 120mm fan for cooling
+Switchable 115/230 voltage input
−Non-modular cabling leaves unused cables inside the case
$34.96
as of 11/03/2026 22:52 PST - Details
EsgamingSpec score 9.3

500 Watts, Gold, Fully modular

+Delivers 500 watts in an ITX, 1U and Flex ATX form factor
+Fully modular cables reduce clutter in small cases
+Supports 90-264V input range with APFC
$49.98
as of 11/03/2026 22:52 PST - Details
RosewillSpec score 9.2

500 Watts, Fully modular

+500W output for Mini ITX and Flex ATX builds
+Fully modular design reduces cable clutter
+1U form factor for compact systems
$49.99
as of 11/04/2026 07:06 PST - Details

Compare specs

power supplyWattsEfficiencyFormModularSpec scorePrice
650GoldATXNon-modular8.7$42.74
as of 11/04/2026 00:18 PST - Details
550Non-modularn/a$35.98
as of 11/04/2026 07:06 PST - Details
650BronzeATXSemi-modular8.1$49.96
as of 11/04/2026 07:06 PST - Details
500ATXn/a$39.99
as of 11/04/2026 08:06 PST - Details
650GoldATXNon-modular8.7$47.97
as of 11/04/2026 07:06 PST - Details
650BronzeATX8.1$44.99
as of 11/03/2026 21:56 PST - Details
650BronzeATXNon-modular8.1$39.96
as of 11/03/2026 22:54 PST - Details
650ATXNon-modularn/a$34.96
as of 11/03/2026 22:52 PST - Details
500GoldFully modular9.3$49.98
as of 11/03/2026 22:52 PST - Details
500Fully modular9.2$49.99
as of 11/04/2026 07:06 PST - Details

Before you buy

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Popular filters

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Spec scores, pros and cons, and prices are explained in the How it works section of the About page.