Hardware Spec Index

Caldera PW-6661 Ultra 750W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW6661-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index1,545 (Power Supplies scale)
Category rank#31,288
Street price$99
Power750 W (rated)
Performance per dollar15.61
Released2020

Specifications

BrandCaldera
ModelCaldera PW-6661 Ultra
Rated output750 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorATX
ModularityFully modular
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty7 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Teralux PW-9524 Plus 1000W 80 PLUS Titanium ATX 3.1 Power Supply2,584$249Compare
Vantrel PW-1216 Edge 1000W 80 PLUS Gold ATX Power Supply2,183$209Compare
Caldera PW-4936 Plus 1300W 80 PLUS Titanium ATX 3.0 Power Supply2,751$329Compare
Novexa PW-9468 XT 1200W 80 PLUS Gold ATX 3.1 Power Supply2,561$309Compare
Teralux PW-7799 Plus 650W 80 PLUS Bronze ATX 3.0 Power Supply1,198$69Compare
Zephyra PW-5887 Pro 850W 80 PLUS Bronze ATX Power Supply1,532$89Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-6661 Ultra 750W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/5282986 (accessed 2026-10-19).