Hardware Spec Index

Novexa PW-8945 Plus 550W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Novexa · SKU PW8945-PLUS · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index897 (Power Supplies scale)
Category rank#41,760
Street price$39
Power550 W (rated)
Performance per dollar23.00
Released2026

Specifications

BrandNovexa
ModelNovexa PW-8945 Plus
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin1×
Form factorATX
ModularityFully 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-2159 Ultra 1000W 80 PLUS Gold ATX 3.0 Power Supply2,034$169Compare
Caldera PW-9423 Core 1000W 80 PLUS Gold ATX Power Supply2,294$239Compare
Zephyra PW-4461 Plus 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,333$279Compare
Caldera PW-4285 Plus 850W 80 PLUS Gold ATX Power Supply1,574$89Compare
Novexa PW-6581 Ti 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,926$399Compare
Vantrel PW-5943 Plus 1600W 80 PLUS Platinum ATX 3.1 Power Supply2,726$339Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-8945 Plus 550W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/95299436 (accessed 2026-10-25).