Hardware Spec Index

Zephyra PW-4729 Ultra 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Zephyra · SKU PW4729-ULTRA · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index2,065 (Power Supplies scale)
Category rank#1,420
Street price$169
Power850 W (rated)
Performance per dollar12.22
Released2020

Specifications

BrandZephyra
ModelZephyra PW-4729 Ultra
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorATX
ModularityFully modular
Fan140 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
Zephyra PW-7021 Ultra 1300W 80 PLUS Gold ATX Power Supply2,528$269Compare
Caldera PW-1978 Pro 1000W 80 PLUS Platinum ATX Power Supply2,477$279Compare
Vantrel PW-9581 Max 1000W 80 PLUS Titanium ATX 3.0 Power Supply2,145$249Compare
Novexa PW-4301 XT 1000W 80 PLUS Platinum ATX 3.1 Power Supply2,189$229Compare
Zephyra PW-1733 Prime 750W 80 PLUS Gold ATX 3.0 Power Supply1,365$89Compare
Zephyra PW-9676 Max 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,162$249Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4729 Ultra 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/43426 (accessed 2026-10-20).