Hardware Spec Index

Zephyra PW-4491 Edge 550W 80 PLUS Bronze ATX 3.0 Power Supply

Power Supplies · Zephyra · SKU PW4491-EDGE · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index820 (Power Supplies scale)
Category rank#36,339
Street price$39
Power550 W (rated)
Performance per dollar21.03
Released2022

Specifications

BrandZephyra
ModelZephyra PW-4491 Edge
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
Fan135 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
Teralux PW-6626 Max 1000W 80 PLUS Gold ATX Power Supply1,911$199Compare
Zephyra PW-7149 Pro 750W 80 PLUS Bronze ATX 3.0 Power Supply1,060$59Compare
Caldera PW-8460 Pro 1300W 80 PLUS Platinum ATX Power Supply2,438$279Compare
Novexa PW-1298 Edge 850W 80 PLUS Gold ATX 3.1 Power Supply1,706$109Compare
Caldera PW-1911 Plus 1300W 80 PLUS Platinum ATX Power Supply2,412$289Compare
Teralux PW-9795 Ultra 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,700$289Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4491 Edge 550W 80 PLUS Bronze ATX 3.0 Power Supply”, https://vextor7.com/item/2366076 (accessed 2026-10-22).