Hardware Spec Index

Novexa PW-4398 Ultra 550W 80 PLUS Gold ATX Power Supply

Power Supplies · Novexa · SKU PW4398-ULTRA · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index727 (Power Supplies scale)
Category rank#24,708
Street price$39
Power550 W (rated)
Performance per dollar18.64
Released2019

Specifications

BrandNovexa
ModelNovexa PW-4398 Ultra
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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-9812 Plus 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,160$189Compare
Caldera PW-9147 Ultra 1300W 80 PLUS Titanium ATX Power Supply2,852$369Compare
Teralux PW-2699 SE 850W 80 PLUS Gold ATX Power Supply1,907$159Compare
Zephyra PW-1798 Pro 1200W 80 PLUS Titanium ATX 3.1 Power Supply2,562$329Compare
Teralux PW-2032 Max 1600W 80 PLUS Gold ATX 3.0 Power Supply2,482$329Compare
Zephyra PW-3444 XT 1000W 80 PLUS Gold ATX 3.1 Power Supply2,191$179Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-4398 Ultra 550W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/91306794 (accessed 2026-10-25).