Hardware Spec Index

Zephyra PW-4999 Plus 550W 80 PLUS Bronze ATX 3.0 Power Supply

Power Supplies · Zephyra · SKU PW4999-PLUS · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index901 (Power Supplies scale)
Category rank#1,135
Street price$49
Power550 W (rated)
Performance per dollar18.39
Released2023

Specifications

BrandZephyra
ModelZephyra PW-4999 Plus
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
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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
Vantrel PW-8882 Core 850W 80 PLUS Gold ATX Power Supply1,826$139Compare
Teralux PW-4991 Max 850W 80 PLUS Gold ATX Power Supply1,550$109Compare
Caldera PW-3658 Ti 1000W 80 PLUS Platinum ATX Power Supply2,255$259Compare
Novexa PW-3612 Prime 1000W 80 PLUS Gold ATX 3.1 Power Supply1,935$159Compare
Zephyra PW-5723 SE 850W 80 PLUS Gold ATX 3.1 Power Supply1,263$79Compare
Vantrel PW-7816 SE 850W 80 PLUS Gold ATX Power Supply2,033$169Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4999 Plus 550W 80 PLUS Bronze ATX 3.0 Power Supply”, https://vextor7.com/item/97839260 (accessed 2026-10-22).