Hardware Spec Index

Caldera PW-4553 Pro 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Caldera · SKU PW4553-PRO · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index1,084 (Power Supplies scale)
Category rank#30,849
Street price$59
Power550 W (rated)
Performance per dollar18.37
Released2019

Specifications

BrandCaldera
ModelCaldera PW-4553 Pro
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
Teralux PW-8247 Core 1300W 80 PLUS Titanium ATX 3.0 Power Supply2,805$369Compare
Vantrel PW-5662 Core 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,680$279Compare
Novexa PW-1293 Ti 1200W 80 PLUS Titanium ATX Power Supply2,314$229Compare
Zephyra PW-3358 Core 1300W 80 PLUS Gold ATX Power Supply2,236$259Compare
Novexa PW-9293 Core 1000W 80 PLUS Gold ATX 3.1 Power Supply1,800$129Compare
Teralux PW-3389 Ultra 750W 80 PLUS Gold ATX 3.1 Power Supply1,513$109Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4553 Pro 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/664683 (accessed 2026-10-22).