Hardware Spec Index

Zephyra PW-9976 XT 850W 80 PLUS Bronze ATX Power Supply

Power Supplies · Zephyra · SKU PW9976-XT · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index1,328 (Power Supplies scale)
Category rank#7,214
Street price$79
Power850 W (rated)
Performance per dollar16.81
Released2019

Specifications

BrandZephyra
ModelZephyra PW-9976 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
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty5 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Caldera PW-3438 Ti 750W 80 PLUS Gold ATX 3.0 Power Supply1,221$59Compare
Caldera PW-7560 Core 1000W 80 PLUS Gold ATX Power Supply1,909$169Compare
Zephyra PW-1909 Edge 550W 80 PLUS Gold ATX 3.1 Power Supply936$49Compare
Teralux PW-3382 Ti 1300W 80 PLUS Titanium ATX Power Supply2,894$379Compare
Caldera PW-4260 Pro 850W 80 PLUS Gold ATX 3.1 Power Supply1,355$99Compare
Novexa PW-5606 Pro 550W 80 PLUS Bronze ATX Power Supply856$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-9976 XT 850W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/14524313 (accessed 2026-10-23).