Hardware Spec Index

Caldera PW-5591 Edge 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW5591-EDGE · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index1,923 (Power Supplies scale)
Category rank#32,796
Street price$139
Power850 W (rated)
Performance per dollar13.83
Released2025

Specifications

BrandCaldera
ModelCaldera PW-5591 Edge
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
Novexa PW-1820 Ti 1200W 80 PLUS Gold ATX Power Supply2,150$259Compare
Zephyra PW-8095 Ultra 850W 80 PLUS Gold ATX Power Supply1,855$139Compare
Caldera PW-3773 XT 1000W 80 PLUS Platinum SFX Power Supply2,000$199Compare
Teralux PW-1436 Ti 750W 80 PLUS Gold ATX 3.1 Power Supply1,489$89Compare
Caldera PW-1115 Max 650W 80 PLUS Bronze ATX Power Supply1,224$79Compare
Novexa PW-3973 SE 1000W 80 PLUS Gold ATX 3.1 Power Supply1,892$149Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-5591 Edge 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/28021592 (accessed 2026-10-23).