Hardware Spec Index

Novexa PW-2979 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Novexa · SKU PW2979-ULTRA · Released 2026 · Updated 2026-10-23

Key facts

Benchmark index749 (Power Supplies scale)
Category rank#42,326
Street price$39
Power550 W (rated)
Performance per dollar19.21
Released2026

Specifications

BrandNovexa
ModelNovexa PW-2979 Ultra
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin1×
Form factorATX
ModularitySemi-modular
Fan135 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
Zephyra PW-3137 Plus 750W 80 PLUS Bronze SFX Power Supply1,345$89Compare
Caldera PW-1941 Ultra 550W 80 PLUS Bronze ATX Power Supply702$39Compare
Teralux PW-5856 Core 1600W 80 PLUS Platinum ATX 3.1 Power Supply2,669$389Compare
Zephyra PW-3035 Ultra 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,419$259Compare
Novexa PW-6221 SE 750W 80 PLUS Bronze ATX Power Supply1,089$59Compare
Vantrel PW-5393 Core 1000W 80 PLUS Gold ATX Power Supply1,573$139Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-2979 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/727749 (accessed 2026-10-23).