Hardware Spec Index

Caldera PW-4943 Pro 550W 80 PLUS Bronze SFX Power Supply

Power Supplies · Caldera · SKU PW4943-PRO · Released 2022 · Updated 2026-10-23

Key facts

Benchmark index779 (Power Supplies scale)
Category rank#14,802
Street price$39
Power550 W (rated)
Performance per dollar19.97
Released2022

Specifications

BrandCaldera
ModelCaldera PW-4943 Pro
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin1×
Form factorSFX-L
ModularityNon-modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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
Caldera PW-9329 Core 850W 80 PLUS Gold ATX Power Supply1,236$69Compare
Caldera PW-2507 Max 850W 80 PLUS Gold SFX Power Supply1,560$109Compare
Teralux PW-7021 XT 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,632$299Compare
Vantrel PW-2407 Ultra 550W 80 PLUS Bronze ATX Power Supply904$49Compare
Vantrel PW-3552 Max 650W 80 PLUS Bronze SFX Power Supply745$39Compare
Teralux PW-1024 Core 750W 80 PLUS Gold ATX 3.0 Power Supply1,057$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4943 Pro 550W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/17048355 (accessed 2026-10-23).