Hardware Spec Index

Caldera PW-3870 XT 550W 80 PLUS Bronze SFX Power Supply

Power Supplies · Caldera · SKU PW3870-XT · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index857 (Power Supplies scale)
Category rank#19,121
Street price$39
Power550 W (rated)
Performance per dollar21.97
Released2024

Specifications

BrandCaldera
ModelCaldera PW-3870 XT
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (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-6564 XT 550W 80 PLUS Gold ATX Power Supply1,069$59Compare
Novexa PW-3638 Ti 750W 80 PLUS Bronze ATX 3.1 Power Supply1,269$89Compare
Teralux PW-7679 XT 1300W 80 PLUS Titanium ATX Power Supply2,958$379Compare
Novexa PW-9537 Plus 750W 80 PLUS Gold ATX 3.0 Power Supply1,342$89Compare
Zephyra PW-9198 Edge 850W 80 PLUS Gold ATX Power Supply1,973$169Compare
Teralux PW-4457 Pro 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,264$199Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-3870 XT 550W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/6833719 (accessed 2026-10-21).