Hardware Spec Index

Zephyra PW-3966 XT 850W 80 PLUS Bronze ATX Power Supply

Power Supplies · Zephyra · SKU PW3966-XT · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index1,467 (Power Supplies scale)
Category rank#45,950
Street price$89
Power850 W (rated)
Performance per dollar16.48
Released2019

Specifications

BrandZephyra
ModelZephyra PW-3966 XT
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
Warranty10 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Teralux PW-1081 Plus 1600W 80 PLUS Titanium ATX Power Supply2,518$339Compare
Caldera PW-9691 Core 750W 80 PLUS Gold ATX 3.0 Power Supply1,115$69Compare
Novexa PW-8647 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply1,059$49Compare
Zephyra PW-3995 Core 850W 80 PLUS Bronze ATX 3.0 Power Supply1,356$69Compare
Caldera PW-3002 Prime 1200W 80 PLUS Gold ATX 3.1 Power Supply2,596$279Compare
Caldera PW-6131 Max 1600W 80 PLUS Platinum ATX Power Supply2,763$379Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-3966 XT 850W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/3625607 (accessed 2026-10-21).