Hardware Spec Index

Caldera PW-9721 Ultra 750W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW9721-ULTRA · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index1,309 (Power Supplies scale)
Category rank#3,121
Street price$79
Power750 W (rated)
Performance per dollar16.57
Released2025

Specifications

BrandCaldera
ModelCaldera PW-9721 Ultra
Rated output750 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
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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-1821 XT 1300W 80 PLUS Platinum ATX Power Supply2,499$289Compare
Caldera PW-1273 Ultra 850W 80 PLUS Gold ATX 3.0 Power Supply1,279$79Compare
Novexa PW-7175 Core 1200W 80 PLUS Gold ATX 3.0 Power Supply2,124$199Compare
Vantrel PW-4185 Pro 850W 80 PLUS Gold ATX 3.0 Power Supply1,603$109Compare
Zephyra PW-5326 Ultra 1200W 80 PLUS Gold ATX 3.1 Power Supply2,213$229Compare
Novexa PW-2650 Edge 1300W 80 PLUS Platinum ATX Power Supply2,606$299Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-9721 Ultra 750W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/4421119 (accessed 2026-10-23).