Hardware Spec Index

Zephyra PW-9581 Max 850W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW9581-MAX · Released 2024 · Updated 2026-10-18

Key facts

Benchmark index1,462 (Power Supplies scale)
Category rank#20,432
Street price$89
Power850 W (rated)
Performance per dollar16.43
Released2024

Specifications

BrandZephyra
ModelZephyra PW-9581 Max
Rated output850 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin2×
Form factorATX
ModularitySemi-modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty10 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Caldera PW-5833 Ti 850W 80 PLUS Gold ATX 3.1 Power Supply1,662$149Compare
Teralux PW-8436 Max 850W 80 PLUS Gold ATX 3.0 Power Supply2,042$179Compare
Novexa PW-7412 Max 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,485$289Compare
Vantrel PW-4788 Ti 850W 80 PLUS Gold ATX Power Supply1,921$139Compare
Zephyra PW-3431 Max 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,569$329Compare
Vantrel PW-7137 Prime 850W 80 PLUS Gold ATX 3.0 Power Supply1,515$99Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-9581 Max 850W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/178702 (accessed 2026-10-18).