Hardware Spec Index

Novexa PW-7991 Pro 650W 80 PLUS Bronze ATX 3.0 Power Supply

Power Supplies · Novexa · SKU PW7991-PRO · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index747 (Power Supplies scale)
Category rank#39,132
Street price$39
Power650 W (rated)
Performance per dollar19.15
Released2022

Specifications

BrandNovexa
ModelNovexa PW-7991 Pro
Rated output650 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin1×
Form factorATX
ModularitySemi-modular
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty5 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Teralux PW-7196 Pro 850W 80 PLUS Bronze ATX 3.0 Power Supply1,303$69Compare
Zephyra PW-9179 Ultra 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,980$399Compare
Vantrel PW-7883 XT 650W 80 PLUS Bronze ATX 3.1 Power Supply983$49Compare
Vantrel PW-1963 Pro 550W 80 PLUS Bronze ATX 3.1 Power Supply860$39Compare
Caldera PW-3701 SE 850W 80 PLUS Gold ATX Power Supply1,852$139Compare
Vantrel PW-8017 Edge 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,980$329Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-7991 Pro 650W 80 PLUS Bronze ATX 3.0 Power Supply”, https://vextor7.com/item/6840189 (accessed 2026-10-21).