Hardware Spec Index

Zephyra PW-7891 Max 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Zephyra · SKU PW7891-MAX · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index2,076 (Power Supplies scale)
Category rank#1,879
Street price$169
Power850 W (rated)
Performance per dollar12.28
Released2019

Specifications

BrandZephyra
ModelZephyra PW-7891 Max
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorATX
ModularityFully modular
Fan120 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
Caldera PW-8090 Ultra 1600W 80 PLUS Titanium ATX Power Supply2,671$319Compare
Caldera PW-2315 Prime 650W 80 PLUS Bronze SFX Power Supply947$39Compare
Caldera PW-3754 Ti 850W 80 PLUS Gold ATX 3.0 Power Supply2,007$169Compare
Caldera PW-6514 Ultra 550W 80 PLUS Bronze ATX Power Supply1,076$59Compare
Vantrel PW-6854 XT 850W 80 PLUS Gold ATX 3.1 Power Supply1,775$149Compare
Vantrel PW-8627 XT 850W 80 PLUS Gold ATX 3.0 Power Supply1,756$139Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-7891 Max 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/28115235 (accessed 2026-10-22).