Hardware Spec Index

Zephyra PW-4973 XT 850W 80 PLUS Gold ATX 3.0 Power Supply

Power Supplies · Zephyra · SKU PW4973-XT · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index1,769 (Power Supplies scale)
Category rank#21,105
Street price$139
Power850 W (rated)
Performance per dollar12.73
Released2023

Specifications

BrandZephyra
ModelZephyra PW-4973 XT
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (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
Novexa PW-5173 Core 1000W 80 PLUS Gold ATX 3.1 Power Supply2,157$199Compare
Teralux PW-6683 Pro 1000W 80 PLUS Platinum ATX Power Supply2,086$189Compare
Vantrel PW-3324 Prime 1000W 80 PLUS Gold ATX 3.1 Power Supply2,070$189Compare
Caldera PW-6394 Ultra 650W 80 PLUS Gold SFX Power Supply847$39Compare
Novexa PW-1321 Max 1300W 80 PLUS Platinum ATX Power Supply2,626$319Compare
Vantrel PW-4762 XT 1200W 80 PLUS Platinum ATX Power Supply1,979$209Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4973 XT 850W 80 PLUS Gold ATX 3.0 Power Supply”, https://vextor7.com/item/51676868 (accessed 2026-10-19).