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Power Supplies under $100

All Power Supplies

6 power supplies under $100 from Rosewill, Thermaltake, MSI and more. Most cost $90 to $98, and half cost less than $90.

All filtersFilters (2)×
Watts: 850  ×Price: Under $100  ×Clear all
Brandbe quiet!1Corsair1Enermax1GIGABYTE1Raijintek1Rosewill1XPG1
Watts65098507750550031000222013001450155016001
EfficiencyGold7
FormATX6
ModularFully modular5Non-modular1
ATX versionATX 3.16
12V-2x6 GPU power12V-2x6 GPU power6
PriceUnder $1006Under $1507Under $2001$50 & above7$75 & above7
Clear allShow 6 Power Supplies
Watts: 850  ×Price: Under $100  ×6 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
XPGSpec score 9.2

850 Watts, Gold, Fully modular, ATX 3.1

+850W output for high-end graphics cards
+Fully modular cable design
+ATX 3.1 compatible design
$89.99-25%List: $119.99
as of 11/04/2026 09:06 PST - Details
RaijintekSpec score 8.3

850 Watts, Gold, ATX, Non-modular

+850W output for mid-to-high power builds
+ATX 3.1 standard with PCIe 5.1 support
+16-pin connector for modern graphics cards
−Non-modular cabling leaves all cables permanently attached
$79.99
as of 11/04/2026 00:48 PST - Details
EnermaxSpec score 9.2

850 Watts, Gold, ATX, Fully modular

+Fully modular cabling for cleaner builds
+Includes 16-pin GPU connector for modern graphics cards
+ATX 3.1 standard for current PC builds
$95.49
as of 11/04/2026 14:08 PST - Details
be quiet!Spec score 8.3

850 Watts, Gold, ATX, ATX 3.1

+850 watts: only 2 of 31 here have more watts
+Gold: only 2 of 26 here have a higher efficiency
$89.90
as of 11/04/2026 13:06 PST - Details
GIGABYTESpec score 9.2

850 Watts, Gold, ATX, Fully modular

+Fully modular design reduces loose cables inside the case
+850W output for mid to high-end builds
+ATX form factor fits standard PC cases
$89.99
as of 11/04/2026 15:07 PST - Details
RosewillSpec score 9.2

850 Watts, Gold, ATX, Fully modular

+850W output for high-power gaming and workstation builds
+Fully modular cable design
+Includes 16-pin PCIe 5.0 12V-2x6 connector
$98.90
as of 11/04/2026 07:06 PST - Details

Compare specs

power supplyWattsEfficiencyFormModularATX versionSpec scorePrice
850GoldFully modularATX 3.19.2$89.99
as of 11/04/2026 09:06 PST - Details
850GoldATXNon-modularATX 3.18.3$79.99
as of 11/04/2026 00:48 PST - Details
850GoldATXFully modularATX 3.19.2$95.49
as of 11/04/2026 14:08 PST - Details
850GoldATXATX 3.18.3$89.90
as of 11/04/2026 13:06 PST - Details
850GoldATXFully modular9.2$89.99
as of 11/04/2026 15:07 PST - Details
850GoldATXFully modularATX 3.19.2$98.90
as of 11/04/2026 07:06 PST - Details

Before you buy

Other price ranges

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Popular filters

Fully Modular Power Supplies97ATX Power Supplies95ATX 3.1 Power Supplies88Power Supplies with 12V-2x6 GPU Power8580 Plus Gold Power Supplies76Power Supplies under $15068Power Supplies under $200641000W Power Supplies61

Power Supplies by use

Power Supply for a Gaming PC121

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