Hardware Spec Index

Novexa PW-6400 Ultra 550W 80 PLUS Bronze SFX Power Supply

Power Supplies · Novexa · SKU PW6400-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index771 (Power Supplies scale)
Category rank#48,302
Street price$39
Power550 W (rated)
Performance per dollar19.77
Released2019

Specifications

BrandNovexa
ModelNovexa PW-6400 Ultra
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorSFX-L
ModularityNon-modular
Fan120 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
Zephyra PW-6370 Ti 850W 80 PLUS Gold ATX 3.1 Power Supply1,619$99Compare
Novexa PW-7895 Max 1300W 80 PLUS Platinum ATX 3.0 Power Supply2,529$289Compare
Teralux PW-4129 Edge 850W 80 PLUS Gold ATX 3.0 Power Supply1,877$159Compare
Zephyra PW-6587 SE 850W 80 PLUS Gold ATX 3.1 Power Supply1,758$139Compare
Zephyra PW-2650 SE 1300W 80 PLUS Platinum ATX Power Supply2,675$319Compare
Caldera PW-2928 Max 850W 80 PLUS Gold SFX Power Supply1,703$119Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-6400 Ultra 550W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/24676887 (accessed 2026-10-19).