Hardware Spec Index

Teralux PW-3971 Prime 650W 80 PLUS Bronze SFX Power Supply

Power Supplies · Teralux · SKU PW3971-PRIME · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index818 (Power Supplies scale)
Category rank#661
Street price$39
Power650 W (rated)
Performance per dollar20.97
Released2020

Specifications

BrandTeralux
ModelTeralux PW-3971 Prime
Rated output650 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorSFX-L
ModularitySemi-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
Caldera PW-9255 SE 550W 80 PLUS Bronze ATX Power Supply854$49Compare
Teralux PW-4632 SE 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,577$289Compare
Zephyra PW-4489 Prime 850W 80 PLUS Gold SFX Power Supply1,304$69Compare
Novexa PW-2924 Max 750W 80 PLUS Bronze ATX 3.0 Power Supply1,014$59Compare
Novexa PW-5088 Prime 750W 80 PLUS Bronze ATX 3.0 Power Supply1,074$49Compare
Caldera PW-7768 Max 650W 80 PLUS Bronze ATX 3.1 Power Supply904$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Teralux PW-3971 Prime 650W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/985302 (accessed 2026-10-19).