Hardware Spec Index

Caldera PW-3931 Prime 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW3931-PRIME · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index1,357 (Power Supplies scale)
Category rank#2,116
Street price$89
Power850 W (rated)
Performance per dollar15.25
Released2025

Specifications

BrandCaldera
ModelCaldera PW-3931 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 factorATX
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
Caldera PW-4673 Pro 850W 80 PLUS Gold ATX Power Supply1,518$99Compare
Teralux PW-4336 Edge 650W 80 PLUS Gold ATX 3.1 Power Supply1,162$69Compare
Teralux PW-9019 SE 1300W 80 PLUS Titanium ATX Power Supply2,823$399Compare
Zephyra PW-8933 Pro 550W 80 PLUS Bronze ATX 3.0 Power Supply1,020$49Compare
Vantrel PW-3069 Pro 650W 80 PLUS Bronze ATX 3.0 Power Supply867$49Compare
Novexa PW-2913 Core 1000W 80 PLUS Gold ATX 3.1 Power Supply1,791$139Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-3931 Prime 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/180146 (accessed 2026-10-20).