Hardware Spec Index

Caldera PW-2550 Core 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Caldera · SKU PW2550-CORE · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index1,023 (Power Supplies scale)
Category rank#17,520
Street price$49
Power550 W (rated)
Performance per dollar20.88
Released2020

Specifications

BrandCaldera
ModelCaldera PW-2550 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
Fan140 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
Teralux PW-9091 Core 1300W 80 PLUS Platinum ATX Power Supply2,209$269Compare
Teralux PW-7460 Ultra 850W 80 PLUS Gold ATX 3.0 Power Supply1,601$99Compare
Vantrel PW-9035 SE 550W 80 PLUS Bronze SFX Power Supply1,084$59Compare
Zephyra PW-1808 Plus 1600W 80 PLUS Platinum ATX Power Supply2,752$309Compare
Zephyra PW-6100 Max 1000W 80 PLUS Gold ATX 3.1 Power Supply1,839$119Compare
Vantrel PW-4021 Max 550W 80 PLUS Gold ATX 3.0 Power Supply1,166$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2550 Core 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/2962416 (accessed 2026-10-25).