Hardware Spec Index

Zephyra PW-3474 Max 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Zephyra · SKU PW3474-MAX · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index1,470 (Power Supplies scale)
Category rank#25,012
Street price$89
Power850 W (rated)
Performance per dollar16.52
Released2020

Specifications

BrandZephyra
ModelZephyra PW-3474 Max
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
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty7 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Caldera PW-4146 Core 1000W 80 PLUS Platinum ATX 3.1 Power Supply1,917$149Compare
Caldera PW-8273 Ultra 1000W 80 PLUS Gold ATX 3.1 Power Supply2,084$199Compare
Novexa PW-1971 Edge 650W 80 PLUS Bronze ATX 3.1 Power Supply1,171$49Compare
Novexa PW-8888 Plus 1600W 80 PLUS Titanium ATX Power Supply2,884$339Compare
Zephyra PW-3773 Max 850W 80 PLUS Bronze ATX Power Supply1,476$89Compare
Caldera PW-9952 Pro 650W 80 PLUS Bronze ATX 3.1 Power Supply1,026$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-3474 Max 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/9538873 (accessed 2026-10-22).