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Best Power Supply under $100

Best power supply under $100: 23 models in our catalog, priced from $44.99 to $99.99 USD, each with a direct Amazon link.

23 products foundVerified stock and secure shipping← See all power supplies
ASRock

ASRock PRO-650B 650W 80+ Bronze ATX 3.1

Image of ASRock PRO-650B 650W 80+ Bronze ATX 3.1

ASRock PRO-650B 650W 80+ Bronze ATX 3.1 power supply from ASRock: 650 W with 80+ Bronze certification. Stable, efficient power for your gaming rig.

$44.99 USD
DetailsAmazon
ARESGAME

ARESGAME AGV Series 650W 80+ Bronze

Image of ARESGAME AGV Series 650W 80+ Bronze

ARESGAME AGV Series 650W 80+ Bronze power supply from ARESGAME: 650 W with 80+ Bronze certification. Stable, efficient power for your gaming rig.

$46.99 USD
DetailsAmazon
Thermaltake

Thermaltake Smart BM3 650W 80+ Bronze ATX 3.1

Image of Thermaltake Smart BM3 650W 80+ Bronze ATX 3.1

Thermaltake Smart BM3 650W 80+ Bronze ATX 3.1 power supply from Thermaltake: 650 W with 80+ Bronze certification. Stable, efficient power for your gaming rig.

$47.99 USD
DetailsAmazon
ASRock

ASRock PRO-650G 650W 80+ Gold ATX 3.1

Image of ASRock PRO-650G 650W 80+ Gold ATX 3.1

ASRock PRO-650G 650W PSU with 80+ Gold, ATX 3.1, quiet 120mm fan, full circuit protection and a 3-year warranty

$49.99 USD
DetailsAmazon
Segotep

Segotep 650W 80+ Gold ATX

Image of Segotep 650W 80+ Gold ATX

Segotep 650W 80+ Gold ATX power supply from Segotep: 650 W with 80+ Gold certification. Stable, efficient power for your gaming rig.

$49.99 USD
DetailsAmazon
CORSAIR

CORSAIR CX750 750W 80+ Bronze No Modular

Image of CORSAIR CX750 750W 80+ Bronze No Modular

Corsair CX750 750W PSU, non-modular and low-noise. An affordable option for no-frills mid-range builds.

$54.99 USD
DetailsAmazon
ASRock

ASRock PRO 750G 750W 80+ Gold ATX 3.1 PCIe 5.1

Image of ASRock PRO 750G 750W 80+ Gold ATX 3.1 PCIe 5.1

ASRock PRO 750W PSU with 80+ Gold certification and ATX 3.1 with PCIe 5.1, very good price per watt.

$54.99 USD
DetailsAmazon
ASRock

ASRock PRO 850G 850W 80+ Gold ATX 3.1 PCIe 5.1

Image of ASRock PRO 850G 850W 80+ Gold ATX 3.1 PCIe 5.1

ASRock PRO 850G 850W PSU with 80+ Gold, ATX 3.1 & PCIe 5.1, native 12V-2x6 connector, low-noise 120mm fan and a 3-year warranty

$64.99 USD
DetailsAmazon
Cooler Master

Cooler Master MWE Gold 750 V3 PCIe 5.1 Ready

Image of Cooler Master MWE Gold 750 V3 PCIe 5.1 Ready

Cooler Master MWE Gold V3 750W PSU with 80+ Gold certification and PCIe 5.1 readiness.

$66.48 USD
DetailsAmazon
MSI

MSI MAG A650GLS PCIE5 650W 80+ Gold Totalmente Modular

Image of MSI MAG A650GLS PCIE5 650W 80+ Gold Totalmente Modular

Compact MSI MAG 650W fully modular PSU, suited to builds with a mid-range GPU and limited space.

$66.49 USD
DetailsAmazon
Thermaltake

Thermaltake GF1 850W 80+ Gold Totalmente Modular

Image of Thermaltake GF1 850W 80+ Gold Totalmente Modular

Thermaltake GF1 850W fully modular and quiet PSU, a well-known brand at a good price.

$72.10 USD
DetailsAmazon
Segotep

Segotep GM850 850W 80+ Gold ATX 3.1 PCIe 5.1

Image of Segotep GM850 850W 80+ Gold ATX 3.1 PCIe 5.1

Segotep GM850 850W PSU with 80+ Gold certification, ATX 3.1 and PCIe 5.1 at a reasonable price.

$77.99 USD
DetailsAmazon
Vetroo

Vetroo 850W 80+ Gold Totalmente Modular White PCIe 5.1

Image of Vetroo 850W 80+ Gold Totalmente Modular White PCIe 5.1

850W fully modular white PSU with 80+ Gold, ATX 3.1 & PCIe 5.1, quiet 120mm FDB fan and a 10-year warranty

$79.99 USD
DetailsAmazon
MSI

MSI MAG A750GL PCIE5 750W 80+ Gold Totalmente Modular

Image of MSI MAG A750GL PCIE5 750W 80+ Gold Totalmente Modular

Compact MSI MAG 750W fully modular, 80+ Gold PSU, suited to mid-range gaming builds.

$80.74 USD
DetailsAmazon
ASRock

ASRock Steel Legend SL-850G 850W 80+ Gold

Image of ASRock Steel Legend SL-850G 850W 80+ Gold

ASRock Steel Legend 850W fully modular PSU with 80 Plus Gold and Cybenetics Platinum certifications.

$80.99 USD
DetailsAmazon
ASRock

ASRock Steel Legend SL-850GW 850W Blanca

Image of ASRock Steel Legend SL-850GW 850W Blanca

ASRock Steel Legend SL-850GW 850W Blanca power supply from ASRock: 850 W with 80+ Gold certification. Stable, efficient power for your gaming rig.

$84.99 USD
DetailsAmazon
ASUS

ASUS Prime 750W Gold Totalmente Modular ATX 3.0

Image of ASUS Prime 750W Gold Totalmente Modular ATX 3.0

ASUS Prime 750W fully modular PSU with 80+ Gold certification and ATX 3.0 compatibility.

$85.49 USD
DetailsAmazon
Genérico

Fuente 1000W 80+ Gold Totalmente Modular ATX 3.1 Black

Image of Fuente 1000W 80+ Gold Totalmente Modular ATX 3.1 Black

1000W fully modular PSU with 80+ Gold, ATX 3.1 and PCIe 5.1, quiet 140mm fan, 105°C Japanese capacitors and a 12V-2x6 connector

$89.99 USD
DetailsAmazon
CORSAIR

CORSAIR RM750e 750W ATX 3.1 PCIe 5.1 Totalmente Modular

Image of CORSAIR RM750e 750W ATX 3.1 PCIe 5.1 Totalmente Modular

Corsair RM750e 750W fully modular PSU with Cybenetics Gold efficiency, ATX 3.1 & PCIe 5.1, Modern Standby mode and 105°C capacitors

$89.99 USD
DetailsAmazon
CORSAIR

CORSAIR RM850e (2025) 850W ATX 3.1 Totalmente Modular

Image of CORSAIR RM850e (2025) 850W ATX 3.1 Totalmente Modular

Corsair RM850e 850W fully modular PSU, low-noise and with a 12V-2x6 cable. Plenty of headroom for high-end GPUs.

$94.99 USD
DetailsAmazon
MSI

MSI MAG A850GLS PCIE5 850W 80+ Gold Totalmente Modular

Image of MSI MAG A850GLS PCIE5 850W 80+ Gold Totalmente Modular

Compact MSI MAG 850W fully modular PSU with PCIe 5 support for modern graphics cards.

$94.99 USD
DetailsAmazon
Genérico

Fuente 1000W 80+ Gold Modular RGB Smart Fan ATX 3.1

Image of Fuente 1000W 80+ Gold Modular RGB Smart Fan ATX 3.1

1000W fully modular PSU with 80+ Gold, ATX 3.1 & PCIe 5.1, native Dual-Color 12V-2x6 cable, smart RGB fan and 105°C capacitors

$99.99 USD
DetailsAmazon
GOLDEN FIELD

GOLDEN FIELD 850W 80+ Gold Totalmente Modular ATX 3.1

Image of GOLDEN FIELD 850W 80+ Gold Totalmente Modular ATX 3.1

850W fully modular gaming PSU with 80+ Gold, ATX 3.1 & PCIe 5.1, native 600W 12V-2x6 cable and high-quality Japanese capacitors

$99.99 USD
DetailsAmazon

Selection analysis: Power Supplies under $100

This selection has 23 power supplies under $100, priced from $44.99 to $99.99 USD with a median of $77.99. The brands with the most models are ASRock (6), Corsair (3), MSI (3), Genérico (2).

Our picks in this selection

Most affordableASRock PRO-650B 650W 80+ Bronze ATX 3.1$44.99 USDWattage: 650 WBalanced choice · closest to the median priceSegotep GM850 850W 80+ Gold ATX 3.1 PCIe 5.1$77.99 USDWattage: 850 WMost complete (priciest)GOLDEN FIELD 850W 80+ Gold Totalmente Modular ATX 3.1$99.99 USDWattage: 850 W

Comparison table

ProductPriceWattageCertificationStandard
ASRock PRO-650B 650W 80+ Bronze ATX 3.1$44.99650 W80+ BronzeATX 3.1
ARESGAME AGV Series 650W 80+ Bronze$46.99650 W80+ BronzeATX
Thermaltake Smart BM3 650W 80+ Bronze ATX 3.1$47.99650 W80+ BronzeATX 3.1 / PCIe 5
ASRock PRO-650G 650W 80+ Gold ATX 3.1$49.99650 W80+ GoldATX 3.1
Segotep 650W 80+ Gold ATX$49.99650 W80+ GoldATX
CORSAIR CX750 750W 80+ Bronze No Modular$54.99750 W80+ BronzeATX
ASRock PRO 750G 750W 80+ Gold ATX 3.1 PCIe 5.1$54.99750 W80+ GoldATX 3.1 / PCIe 5.1
ASRock PRO 850G 850W 80+ Gold ATX 3.1 PCIe 5.1$64.99850 W80+ GoldATX 3.1 / PCIe 5.1
Cooler Master MWE Gold 750 V3 PCIe 5.1 Ready$66.48750 W80+ GoldPCIe 5.1 Ready
MSI MAG A650GLS PCIE5 650W 80+ Gold Totalmente Modular$66.49650 W80+ GoldPCIe 5
Thermaltake GF1 850W 80+ Gold Totalmente Modular$72.10850 W80+ Gold—
Segotep GM850 850W 80+ Gold ATX 3.1 PCIe 5.1$77.99850 W80+ GoldATX 3.1 / PCIe 5.1
Vetroo 850W 80+ Gold Totalmente Modular White PCIe 5.1$79.99850 W80+ GoldATX 3.1 / PCIe 5.1
MSI MAG A750GL PCIE5 750W 80+ Gold Totalmente Modular$80.74750 W80+ GoldPCIe 5
ASRock Steel Legend SL-850G 850W 80+ Gold$80.99850 W80+ Gold / Cybenetics Platinum—
ASRock Steel Legend SL-850GW 850W Blanca$84.99850 W80+ GoldATX 3.1 / PCIe 5.1
ASUS Prime 750W Gold Totalmente Modular ATX 3.0$85.49750 W80+ GoldATX 3.0
Fuente 1000W 80+ Gold Totalmente Modular ATX 3.1 Black$89.991000 W80+ GoldATX 3.1 / PCIe 5.1
CORSAIR RM750e 750W ATX 3.1 PCIe 5.1 Totalmente Modular$89.99750 WCybenetics GoldATX 3.1 / PCIe 5.1
CORSAIR RM850e (2025) 850W ATX 3.1 Totalmente Modular$94.99850 W80+ GoldATX 3.1 / PCIe 5.1
MSI MAG A850GLS PCIE5 850W 80+ Gold Totalmente Modular$94.99850 W80+ GoldPCIe 5
Fuente 1000W 80+ Gold Modular RGB Smart Fan ATX 3.1$99.991000 W80+ GoldATX 3.1 / PCIe 5.1
GOLDEN FIELD 850W 80+ Gold Totalmente Modular ATX 3.1$99.99850 W80+ GoldATX 3.1 / PCIe 5.1

Frequently asked questions

What is the cheapest of the power supplies under $100?
The cheapest in our catalog is ASRock PRO-650B 650W 80+ Bronze ATX 3.1, at $44.99 USD (Wattage: 650 W).
How much do power supplies under $100 cost?
In our catalog they cost between $44.99 and $99.99 USD; half of the models are below $77.99.
Which brands are among the power supplies under $100?
There are 11 brands; the ones with the most models are ASRock (6), Corsair (3), MSI (3), Genérico (2).

Automatic analysis based on this catalog's specs and prices.

Best power supply under $100: what to check before you buy

If you are looking for best power supply under $100, you will find 23 options from the Monckey Gamer catalog here, sorted from cheapest to most expensive and linked straight to Amazon.

If your search is best PSU under $100, this same page works for you: use the list above and the quick guide to decide.

Quick guide: Power Supplies under $100

80 Plus Gold modular PSUs under $100.

Looking for something different? More power supplies

Components that go hand in hand with power supplies:

Graphics cardsThe graphics card draws the most power: size your PSU around it.View →Gaming casesMake sure the PSU form factor (ATX or SFX) and its length fit your case.View →ProcessorsHigh-end processors raise consumption: add their TDP when sizing your PSU.View →