Hardware Spec Index

Caldera PW-9151 Prime 550W 80 PLUS Gold SFX Power Supply

Power Supplies · Caldera · SKU PW9151-PRIME · Released 2022 · Updated 2026-10-25

Key facts

Benchmark index743 (Power Supplies scale)
Category rank#16,065
Street price$39
Power550 W (rated)
Performance per dollar19.05
Released2022

Specifications

BrandCaldera
ModelCaldera PW-9151 Prime
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (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
Warranty7 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Novexa PW-7913 Edge 650W 80 PLUS Gold ATX Power Supply1,166$59Compare
Novexa PW-7382 XT 550W 80 PLUS Bronze ATX 3.0 Power Supply740$39Compare
Vantrel PW-7254 Ti 1000W 80 PLUS Platinum ATX Power Supply2,287$259Compare
Vantrel PW-4786 Prime 550W 80 PLUS Bronze ATX 3.1 Power Supply821$49Compare
Caldera PW-6636 XT 650W 80 PLUS Bronze ATX 3.1 Power Supply817$39Compare
Novexa PW-7115 Edge 1200W 80 PLUS Gold ATX 3.0 Power Supply2,148$189Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-9151 Prime 550W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/31364410 (accessed 2026-10-25).