Hardware Spec Index

Caldera FN-4055 Pro 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4055-PRO · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index514 (Case Fans scale)
Category rank#6,116
Street price$19
Power4 W
Performance per dollar27.05
Released2020

Specifications

BrandCaldera
ModelCaldera FN-4055 Pro
Size140 × 140 × 25 mm
Speed500–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4055 Pro 140mm PWM Case Fan”, https://vextor7.com/item/1190901 (accessed 2026-10-21).