Hardware Spec Index

Caldera PW-2149 XT 550W 80 PLUS Gold SFX Power Supply

Power Supplies · Caldera · SKU PW2149-XT · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index992 (Power Supplies scale)
Category rank#30,119
Street price$49
Power550 W (rated)
Performance per dollar20.24
Released2019

Specifications

BrandCaldera
ModelCaldera PW-2149 XT
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorSFX-L
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty7 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Zephyra PW-3712 SE 1200W 80 PLUS Titanium ATX 3.1 Power Supply2,602$329Compare
Novexa PW-5267 Ti 1000W 80 PLUS Gold SFX Power Supply2,088$169Compare
Caldera PW-2709 Core 650W 80 PLUS Bronze ATX Power Supply1,374$79Compare
Vantrel PW-5534 SE 650W 80 PLUS Bronze ATX 3.1 Power Supply999$39Compare
Teralux PW-8010 Max 750W 80 PLUS Gold ATX Power Supply1,521$109Compare
Zephyra PW-3359 Ti 650W 80 PLUS Bronze ATX 3.1 Power Supply972$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2149 XT 550W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/481785 (accessed 2026-10-22).