Hardware Spec Index

Novexa PW-7981 Core 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Novexa · SKU PW7981-CORE · Released 2019 · Updated 2026-10-18

Key facts

Benchmark index822 (Power Supplies scale)
Category rank#24,609
Street price$39
Power550 W (rated)
Performance per dollar21.08
Released2019

Specifications

BrandNovexa
ModelNovexa PW-7981 Core
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty7 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Novexa PW-6354 SE 1600W 80 PLUS Platinum ATX 3.1 Power Supply2,880$399Compare
Vantrel PW-1719 Edge 650W 80 PLUS Gold ATX 3.1 Power Supply868$39Compare
Zephyra PW-3723 Max 850W 80 PLUS Gold ATX 3.0 Power Supply2,075$179Compare
Teralux PW-6515 XT 850W 80 PLUS Gold ATX Power Supply1,962$159Compare
Teralux PW-7937 Pro 850W 80 PLUS Gold ATX 3.1 Power Supply1,852$149Compare
Caldera PW-8481 Plus 550W 80 PLUS Bronze ATX 3.0 Power Supply933$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-7981 Core 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/8987662 (accessed 2026-10-18).