Hardware Spec Index

Caldera PW-9473 Ultra 550W 80 PLUS Gold SFX Power Supply

Power Supplies · Caldera · SKU PW9473-ULTRA · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index869 (Power Supplies scale)
Category rank#7,183
Street price$49
Power550 W (rated)
Performance per dollar17.73
Released2025

Specifications

BrandCaldera
ModelCaldera PW-9473 Ultra
Rated output550 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-pin1×
Form factorSFX-L
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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-6161 Ti 1000W 80 PLUS Gold ATX Power Supply2,247$209Compare
Vantrel PW-4446 Core 1000W 80 PLUS Platinum SFX Power Supply2,046$159Compare
Novexa PW-8885 XT 850W 80 PLUS Gold ATX 3.0 Power Supply1,585$119Compare
Vantrel PW-9250 Core 1200W 80 PLUS Gold ATX 3.1 Power Supply2,060$229Compare
Teralux PW-1638 Pro 850W 80 PLUS Gold ATX Power Supply1,553$109Compare
Vantrel PW-6332 Prime 750W 80 PLUS Gold ATX 3.0 Power Supply1,415$89Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-9473 Ultra 550W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/41005376 (accessed 2026-10-20).