Hardware Spec Index

Caldera PW-7403 Core 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW7403-CORE · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index1,038 (Power Supplies scale)
Category rank#30,908
Street price$49
Power550 W (rated)
Performance per dollar21.18
Released2024

Specifications

BrandCaldera
ModelCaldera PW-7403 Core
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin1×
Form factorATX
ModularityNon-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
Caldera PW-9489 Ultra 1200W 80 PLUS Gold ATX 3.0 Power Supply2,069$239Compare
Zephyra PW-2797 Plus 850W 80 PLUS Gold ATX Power Supply1,791$139Compare
Zephyra PW-9529 XT 650W 80 PLUS Gold ATX 3.0 Power Supply1,003$49Compare
Teralux PW-1837 XT 1600W 80 PLUS Platinum ATX 3.1 Power Supply2,633$349Compare
Zephyra PW-7477 Prime 650W 80 PLUS Bronze ATX Power Supply845$39Compare
Zephyra PW-8984 Prime 750W 80 PLUS Bronze ATX 3.1 Power Supply1,031$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-7403 Core 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/20080066 (accessed 2026-10-20).