Hardware Spec Index

Zephyra PW-9390 Pro 550W 80 PLUS Bronze SFX Power Supply

Power Supplies · Zephyra · SKU PW9390-PRO · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index835 (Power Supplies scale)
Category rank#46,416
Street price$49
Power550 W (rated)
Performance per dollar17.04
Released2021

Specifications

BrandZephyra
ModelZephyra PW-9390 Pro
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
ModularitySemi-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
Caldera PW-9664 SE 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,855$369Compare
Vantrel PW-8933 Prime 550W 80 PLUS Bronze ATX Power Supply871$39Compare
Zephyra PW-5163 Prime 1000W 80 PLUS Gold ATX 3.0 Power Supply2,559$269Compare
Vantrel PW-2195 Ultra 1600W 80 PLUS Titanium ATX Power Supply2,854$379Compare
Zephyra PW-2268 Plus 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,172$199Compare
Vantrel PW-8605 Ti 1600W 80 PLUS Titanium ATX Power Supply2,850$379Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-9390 Pro 550W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/5809986 (accessed 2026-10-19).