Hardware Spec Index

Caldera PW-9997 Ultra 550W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW9997-ULTRA · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index920 (Power Supplies scale)
Category rank#31,662
Street price$49
Power550 W (rated)
Performance per dollar18.78
Released2021

Specifications

BrandCaldera
ModelCaldera PW-9997 Ultra
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty5 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Caldera PW-2502 XT 1300W 80 PLUS Titanium ATX 3.0 Power Supply2,899$319Compare
Novexa PW-3744 Ti 1200W 80 PLUS Gold ATX 3.0 Power Supply2,214$239Compare
Caldera PW-4762 Edge 650W 80 PLUS Gold ATX Power Supply1,173$59Compare
Vantrel PW-5194 Max 850W 80 PLUS Gold ATX Power Supply1,698$139Compare
Vantrel PW-9965 Pro 1000W 80 PLUS Gold ATX Power Supply1,645$109Compare
Vantrel PW-4748 Core 850W 80 PLUS Gold ATX 3.0 Power Supply1,841$149Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-9997 Ultra 550W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/10132178 (accessed 2026-10-25).