Hardware Spec Index

Novexa PW-8474 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Novexa · SKU PW8474-ULTRA · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index922 (Power Supplies scale)
Category rank#8,815
Street price$49
Power550 W (rated)
Performance per dollar18.82
Released2024

Specifications

BrandNovexa
ModelNovexa PW-8474 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
ModularityNon-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
Caldera PW-5831 Prime 1000W 80 PLUS Platinum ATX 3.0 Power Supply1,862$149Compare
Zephyra PW-4553 Core 650W 80 PLUS Gold ATX 3.1 Power Supply731$39Compare
Teralux PW-8065 Pro 1000W 80 PLUS Gold ATX 3.0 Power Supply2,359$289Compare
Caldera PW-9579 Prime 550W 80 PLUS Bronze ATX 3.0 Power Supply874$49Compare
Caldera PW-7334 Pro 550W 80 PLUS Gold ATX Power Supply1,219$59Compare
Zephyra PW-7692 Ultra 1200W 80 PLUS Gold ATX 3.1 Power Supply2,410$249Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-8474 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/5844787 (accessed 2026-10-25).