Hardware Spec Index

Zephyra PW-4420 Prime 550W 80 PLUS Gold ATX 3.0 Power Supply

Power Supplies · Zephyra · SKU PW4420-PRIME · Released 2022 · Updated 2026-10-25

Key facts

Benchmark index754 (Power Supplies scale)
Category rank#21,964
Street price$39
Power550 W (rated)
Performance per dollar19.33
Released2022

Specifications

BrandZephyra
ModelZephyra PW-4420 Prime
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin1×
Form factorATX
ModularityFully modular
Fan120 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
Novexa PW-7390 Max 650W 80 PLUS Gold ATX 3.1 Power Supply1,214$69Compare
Vantrel PW-2268 Plus 850W 80 PLUS Gold ATX 3.1 Power Supply1,591$89Compare
Teralux PW-3204 Max 1200W 80 PLUS Titanium ATX Power Supply2,402$269Compare
Teralux PW-1251 Ti 1600W 80 PLUS Titanium ATX Power Supply2,676$309Compare
Vantrel PW-6623 Ultra 1200W 80 PLUS Gold ATX 3.0 Power Supply2,327$229Compare
Zephyra PW-3451 Ultra 650W 80 PLUS Bronze ATX Power Supply1,399$89Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4420 Prime 550W 80 PLUS Gold ATX 3.0 Power Supply”, https://vextor7.com/item/32932402 (accessed 2026-10-25).