Hardware Spec Index

Zephyra PW-3873 Prime 850W 80 PLUS Gold SFX Power Supply

Power Supplies · Zephyra · SKU PW3873-PRIME · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index1,893 (Power Supplies scale)
Category rank#20,348
Street price$199
Power850 W (rated)
Performance per dollar9.51
Released2025

Specifications

BrandZephyra
ModelZephyra PW-3873 Prime
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin2×
Form factorSFX-L
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
Teralux PW-9827 Ti 1000W 80 PLUS Gold ATX 3.0 Power Supply1,971$159Compare
Zephyra PW-1151 XT 550W 80 PLUS Bronze ATX 3.1 Power Supply809$39Compare
Teralux PW-8415 Ti 1200W 80 PLUS Gold ATX 3.1 Power Supply2,163$219Compare
Novexa PW-8487 Core 850W 80 PLUS Gold ATX Power Supply1,390$79Compare
Caldera PW-5481 Ultra 1000W 80 PLUS Gold ATX Power Supply2,171$219Compare
Teralux PW-8271 Edge 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,646$289Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-3873 Prime 850W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/2398079 (accessed 2026-10-19).