Hardware Spec Index

Zephyra PW-9781 Prime 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW9781-PRIME · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index1,650 (Power Supplies scale)
Category rank#4,231
Street price$139
Power850 W (rated)
Performance per dollar11.87
Released2025

Specifications

BrandZephyra
ModelZephyra PW-9781 Prime
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
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
Zephyra PW-7612 XT 1300W 80 PLUS Titanium ATX 3.0 Power Supply2,418$239Compare
Zephyra PW-2870 Max 1000W 80 PLUS Gold ATX 3.1 Power Supply1,835$159Compare
Caldera PW-7607 Prime 650W 80 PLUS Gold ATX 3.0 Power Supply739$39Compare
Teralux PW-1653 Max 1000W 80 PLUS Gold ATX 3.1 Power Supply2,240$199Compare
Novexa PW-4982 SE 650W 80 PLUS Gold ATX 3.0 Power Supply943$39Compare
Caldera PW-9173 Max 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,757$389Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-9781 Prime 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/3359953 (accessed 2026-10-20).