Hardware Spec Index

Zephyra PW-9864 Prime 850W 80 PLUS Bronze ATX Power Supply

Power Supplies · Zephyra · SKU PW9864-PRIME · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index1,255 (Power Supplies scale)
Category rank#27,462
Street price$59
Power850 W (rated)
Performance per dollar21.27
Released2019

Specifications

BrandZephyra
ModelZephyra PW-9864 Prime
Rated output850 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorATX
ModularitySemi-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
Teralux PW-2374 Plus 550W 80 PLUS Bronze ATX 3.1 Power Supply778$39Compare
Caldera PW-8796 Max 850W 80 PLUS Gold ATX 3.1 Power Supply1,617$109Compare
Zephyra PW-3602 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply1,829$149Compare
Vantrel PW-3269 Prime 1600W 80 PLUS Platinum ATX Power Supply2,723$349Compare
Teralux PW-1254 Plus 1000W 80 PLUS Gold ATX 3.1 Power Supply1,578$109Compare
Caldera PW-5048 SE 550W 80 PLUS Bronze ATX 3.1 Power Supply711$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-9864 Prime 850W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/50000764 (accessed 2026-10-20).