Hardware Spec Index

Caldera PW-5661 Max 1200W 80 PLUS Platinum ATX Power Supply

Power Supplies · Caldera · SKU PW5661-MAX · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index1,965 (Power Supplies scale)
Category rank#17,961
Street price$209
Power1200 W (rated)
Performance per dollar9.40
Released2019

Specifications

BrandCaldera
ModelCaldera PW-5661 Max
Rated output1,200 W continuous
Efficiency80 PLUS Platinum (92% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin4×
Form factorATX
ModularityFully modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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-1013 SE 1000W 80 PLUS Gold ATX 3.1 Power Supply2,073$189Compare
Caldera PW-2634 XT 550W 80 PLUS Bronze ATX 3.1 Power Supply841$49Compare
Caldera PW-2817 Ultra 850W 80 PLUS Gold ATX Power Supply1,538$89Compare
Caldera PW-7193 Ultra 1000W 80 PLUS Gold ATX Power Supply1,738$119Compare
Zephyra PW-3795 Plus 650W 80 PLUS Bronze ATX 3.1 Power Supply951$49Compare
Novexa PW-3218 XT 550W 80 PLUS Gold ATX 3.0 Power Supply772$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-5661 Max 1200W 80 PLUS Platinum ATX Power Supply”, https://vextor7.com/item/45306768 (accessed 2026-10-19).