Hardware Spec Index

Caldera PW-2939 Ti 550W 80 PLUS Bronze SFX Power Supply

Power Supplies · Caldera · SKU PW2939-TI · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index896 (Power Supplies scale)
Category rank#3,251
Street price$49
Power550 W (rated)
Performance per dollar18.29
Released2020

Specifications

BrandCaldera
ModelCaldera PW-2939 Ti
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorSFX-L
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
Caldera PW-5955 Edge 1000W 80 PLUS Gold SFX Power Supply2,156$209Compare
Teralux PW-1807 Plus 650W 80 PLUS Bronze ATX Power Supply1,021$49Compare
Novexa PW-9442 XT 1000W 80 PLUS Gold SFX Power Supply2,092$209Compare
Novexa PW-1907 Edge 850W 80 PLUS Gold ATX 3.1 Power Supply1,504$89Compare
Novexa PW-4236 SE 650W 80 PLUS Bronze ATX 3.1 Power Supply992$49Compare
Caldera PW-9906 XT 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,715$349Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2939 Ti 550W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/50001760 (accessed 2026-10-20).