Hardware Spec Index

Caldera PW-5491 Plus 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW5491-PLUS · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index1,536 (Power Supplies scale)
Category rank#36,336
Street price$99
Power850 W (rated)
Performance per dollar15.52
Released2021

Specifications

BrandCaldera
ModelCaldera PW-5491 Plus
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
Warranty5 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Teralux PW-1281 Ultra 550W 80 PLUS Gold ATX Power Supply920$39Compare
Caldera PW-5499 Edge 750W 80 PLUS Gold ATX 3.0 Power Supply1,179$59Compare
Zephyra PW-6150 Prime 850W 80 PLUS Gold ATX 3.0 Power Supply1,555$99Compare
Novexa PW-9311 Plus 650W 80 PLUS Bronze SFX Power Supply979$49Compare
Novexa PW-1269 Pro 750W 80 PLUS Gold ATX Power Supply1,368$79Compare
Teralux PW-5427 Prime 750W 80 PLUS Bronze ATX 3.1 Power Supply1,072$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-5491 Plus 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/7688935 (accessed 2026-10-21).