Hardware Spec Index

Caldera PW-1131 Core 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Caldera · SKU PW1131-CORE · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index811 (Power Supplies scale)
Category rank#3,200
Street price$39
Power550 W (rated)
Performance per dollar20.79
Released2020

Specifications

BrandCaldera
ModelCaldera PW-1131 Core
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
Fan135 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
Vantrel PW-7846 Core 1300W 80 PLUS Gold ATX 3.1 Power Supply2,575$269Compare
Vantrel PW-4230 Ti 1300W 80 PLUS Titanium ATX Power Supply2,695$329Compare
Vantrel PW-2014 Edge 1200W 80 PLUS Gold ATX 3.0 Power Supply2,565$289Compare
Novexa PW-7453 Edge 850W 80 PLUS Gold ATX 3.1 Power Supply1,684$129Compare
Vantrel PW-3371 Ti 1200W 80 PLUS Titanium ATX Power Supply2,376$279Compare
Novexa PW-1249 Ti 850W 80 PLUS Gold ATX 3.0 Power Supply1,889$169Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-1131 Core 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/207993 (accessed 2026-10-19).