Hardware Spec Index

Caldera PW-5383 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW5383-ULTRA · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index819 (Power Supplies scale)
Category rank#22,905
Street price$39
Power550 W (rated)
Performance per dollar21.00
Released2025

Specifications

BrandCaldera
ModelCaldera PW-5383 Ultra
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
ModularitySemi-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-7526 Plus 1200W 80 PLUS Titanium ATX 3.0 Power Supply2,519$339Compare
Caldera PW-1697 Edge 1000W 80 PLUS Gold ATX Power Supply2,284$229Compare
Teralux PW-7070 Ti 650W 80 PLUS Bronze SFX Power Supply818$39Compare
Caldera PW-6726 SE 1200W 80 PLUS Titanium ATX 3.1 Power Supply2,260$239Compare
Caldera PW-5047 XT 850W 80 PLUS Gold ATX 3.1 Power Supply1,445$89Compare
Novexa PW-3156 Edge 850W 80 PLUS Gold ATX 3.1 Power Supply1,794$149Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-5383 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/8660935 (accessed 2026-10-22).