Hardware Spec Index

Zephyra PW-8851 Pro 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Zephyra · SKU PW8851-PRO · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index905 (Power Supplies scale)
Category rank#37,568
Street price$39
Power550 W (rated)
Performance per dollar23.21
Released2020

Specifications

BrandZephyra
ModelZephyra PW-8851 Pro
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularitySemi-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
Novexa PW-3257 Ultra 650W 80 PLUS Gold SFX Power Supply1,173$59Compare
Caldera PW-3279 Prime 1000W 80 PLUS Gold ATX 3.1 Power Supply2,025$189Compare
Caldera PW-2524 Edge 650W 80 PLUS Gold ATX 3.0 Power Supply1,343$69Compare
Teralux PW-1167 Ti 1300W 80 PLUS Platinum ATX Power Supply2,466$249Compare
Teralux PW-1641 Max 1200W 80 PLUS Platinum ATX 3.0 Power Supply2,066$199Compare
Zephyra PW-9828 Core 1300W 80 PLUS Gold ATX Power Supply2,570$299Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-8851 Pro 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/978625 (accessed 2026-10-19).