Hardware Spec Index

Caldera PW-1143 Max 550W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW1143-MAX · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index723 (Power Supplies scale)
Category rank#8,419
Street price$39
Power550 W (rated)
Performance per dollar18.54
Released2020

Specifications

BrandCaldera
ModelCaldera PW-1143 Max
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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-5681 Prime 1000W 80 PLUS Titanium ATX Power Supply2,355$219Compare
Novexa PW-6284 Plus 550W 80 PLUS Bronze ATX 3.1 Power Supply952$39Compare
Teralux PW-2692 Ti 850W 80 PLUS Gold ATX Power Supply1,968$169Compare
Novexa PW-3982 Core 1000W 80 PLUS Gold ATX Power Supply2,065$189Compare
Vantrel PW-1615 Ti 1000W 80 PLUS Gold SFX Power Supply1,858$159Compare
Teralux PW-7035 Plus 550W 80 PLUS Gold SFX Power Supply1,166$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-1143 Max 550W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/5928347 (accessed 2026-10-23).