Hardware Spec Index

Novexa PW-8418 Prime 550W 80 PLUS Bronze ATX 3.0 Power Supply

Power Supplies · Novexa · SKU PW8418-PRIME · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index1,089 (Power Supplies scale)
Category rank#326
Street price$59
Power550 W (rated)
Performance per dollar18.46
Released2023

Specifications

BrandNovexa
ModelNovexa PW-8418 Prime
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (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
Warranty7 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Caldera PW-8258 Plus 750W 80 PLUS Gold ATX 3.0 Power Supply1,281$89Compare
Vantrel PW-9851 Prime 1200W 80 PLUS Gold ATX Power Supply2,370$249Compare
Teralux PW-3650 Pro 850W 80 PLUS Gold ATX 3.1 Power Supply1,665$139Compare
Novexa PW-3607 Prime 850W 80 PLUS Gold ATX 3.1 Power Supply1,348$79Compare
Novexa PW-9618 Max 850W 80 PLUS Gold SFX Power Supply1,414$89Compare
Teralux PW-3360 Edge 1000W 80 PLUS Platinum ATX Power Supply1,896$169Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-8418 Prime 550W 80 PLUS Bronze ATX 3.0 Power Supply”, https://vextor7.com/item/9178987 (accessed 2026-10-19).