Hardware Spec Index

Teralux PW-3921 Pro 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Teralux · SKU PW3921-PRO · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index1,876 (Power Supplies scale)
Category rank#10,703
Street price$129
Power850 W (rated)
Performance per dollar14.54
Released2021

Specifications

BrandTeralux
ModelTeralux PW-3921 Pro
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
Fan120 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
Novexa PW-8947 Pro 850W 80 PLUS Gold ATX 3.1 Power Supply1,627$109Compare
Zephyra PW-1129 Plus 1000W 80 PLUS Gold ATX 3.1 Power Supply1,777$119Compare
Teralux PW-1299 Ultra 850W 80 PLUS Gold ATX 3.0 Power Supply1,270$69Compare
Vantrel PW-6792 Prime 1200W 80 PLUS Titanium ATX Power Supply2,502$249Compare
Caldera PW-4199 Prime 650W 80 PLUS Bronze ATX 3.1 Power Supply871$39Compare
Teralux PW-5793 SE 1000W 80 PLUS Gold ATX Power Supply2,061$159Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Teralux PW-3921 Pro 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/6760002 (accessed 2026-10-19).