Hardware Spec Index

Zephyra PW-5591 Max 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW5591-MAX · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index1,707 (Power Supplies scale)
Category rank#19,782
Street price$119
Power850 W (rated)
Performance per dollar14.34
Released2024

Specifications

BrandZephyra
ModelZephyra PW-5591 Max
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan140 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
Zephyra PW-4815 Ti 1000W 80 PLUS Titanium ATX Power Supply2,425$259Compare
Vantrel PW-5458 Plus 1000W 80 PLUS Gold ATX 3.1 Power Supply1,748$119Compare
Caldera PW-2410 Ultra 750W 80 PLUS Bronze ATX Power Supply1,284$69Compare
Zephyra PW-5413 Plus 650W 80 PLUS Gold ATX 3.0 Power Supply775$39Compare
Caldera PW-6058 Core 1600W 80 PLUS Titanium ATX Power Supply2,926$339Compare
Novexa PW-8465 SE 650W 80 PLUS Gold ATX Power Supply1,227$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-5591 Max 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/15470540 (accessed 2026-10-22).