Hardware Spec Index

Novexa PW-6578 Ultra 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Novexa · SKU PW6578-ULTRA · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index782 (Power Supplies scale)
Category rank#29,155
Street price$39
Power550 W (rated)
Performance per dollar20.05
Released2019

Specifications

BrandNovexa
ModelNovexa PW-6578 Ultra
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
Warranty5 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Vantrel PW-2266 Core 850W 80 PLUS Gold ATX 3.0 Power Supply1,908$139Compare
Caldera PW-2602 Pro 1000W 80 PLUS Gold ATX Power Supply1,955$149Compare
Novexa PW-9998 Edge 750W 80 PLUS Gold ATX Power Supply1,349$79Compare
Novexa PW-5326 Edge 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,496$289Compare
Vantrel PW-6247 Ti 850W 80 PLUS Gold ATX Power Supply1,991$159Compare
Novexa PW-4251 Max 850W 80 PLUS Gold ATX 3.1 Power Supply1,752$139Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-6578 Ultra 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/1205973 (accessed 2026-10-22).