Hardware Spec Index

Caldera PW-4072 Ultra 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Caldera · SKU PW4072-ULTRA · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index764 (Power Supplies scale)
Category rank#10,924
Street price$39
Power550 W (rated)
Performance per dollar19.59
Released2021

Specifications

BrandCaldera
ModelCaldera PW-4072 Ultra
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan120 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
Zephyra PW-1668 Prime 850W 80 PLUS Gold ATX 3.1 Power Supply1,376$79Compare
Novexa PW-1509 Plus 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,913$369Compare
Caldera PW-5148 XT 850W 80 PLUS Gold ATX 3.1 Power Supply1,959$169Compare
Novexa PW-4837 Core 550W 80 PLUS Bronze ATX Power Supply1,072$59Compare
Novexa PW-7520 Ti 850W 80 PLUS Gold ATX Power Supply1,618$119Compare
Novexa PW-6127 Pro 750W 80 PLUS Gold ATX 3.1 Power Supply997$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4072 Ultra 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/4180895 (accessed 2026-10-21).