Hardware Spec Index

Zephyra PW-4174 Ultra 850W 80 PLUS Gold ATX 3.0 Power Supply

Power Supplies · Zephyra · SKU PW4174-ULTRA · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index1,717 (Power Supplies scale)
Category rank#32,587
Street price$129
Power850 W (rated)
Performance per dollar13.31
Released2023

Specifications

BrandZephyra
ModelZephyra PW-4174 Ultra
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
Fan120 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
Caldera PW-6034 XT 550W 80 PLUS Bronze SFX Power Supply1,088$49Compare
Caldera PW-6950 Core 1200W 80 PLUS Gold ATX 3.1 Power Supply2,616$269Compare
Vantrel PW-4761 Edge 850W 80 PLUS Gold ATX 3.1 Power Supply1,816$139Compare
Vantrel PW-3757 XT 1200W 80 PLUS Gold ATX Power Supply2,051$189Compare
Caldera PW-4089 Edge 850W 80 PLUS Gold ATX 3.1 Power Supply1,536$89Compare
Teralux PW-5225 SE 850W 80 PLUS Bronze SFX Power Supply1,418$79Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4174 Ultra 850W 80 PLUS Gold ATX 3.0 Power Supply”, https://vextor7.com/item/5382893 (accessed 2026-10-23).