Hardware Spec Index

Caldera PW-5591 Plus 1600W 80 PLUS Titanium ATX 3.0 Power Supply

Power Supplies · Caldera · SKU PW5591-PLUS · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index2,766 (Power Supplies scale)
Category rank#6,066
Street price$269
Power1600 W (rated)
Performance per dollar10.28
Released2023

Specifications

BrandCaldera
ModelCaldera PW-5591 Plus
Rated output1,600 W continuous
Efficiency80 PLUS Titanium (94% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin5×
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
Zephyra PW-8125 Ultra 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,980$369Compare
Vantrel PW-5501 SE 850W 80 PLUS Gold ATX Power Supply1,444$99Compare
Novexa PW-2972 SE 1000W 80 PLUS Gold SFX Power Supply2,137$219Compare
Caldera PW-6585 Core 850W 80 PLUS Gold ATX 3.1 Power Supply1,838$139Compare
Zephyra PW-5894 Max 1000W 80 PLUS Gold ATX 3.1 Power Supply1,995$199Compare
Novexa PW-7950 Edge 650W 80 PLUS Gold ATX 3.1 Power Supply1,015$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-5591 Plus 1600W 80 PLUS Titanium ATX 3.0 Power Supply”, https://vextor7.com/item/7217520 (accessed 2026-10-26).