Hardware Spec Index

Caldera FN-3781 XT 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3781-XT · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index580 (Case Fans scale)
Category rank#10,560
Street price$19
Power3 W
Performance per dollar30.53
Released2023

Specifications

BrandCaldera
ModelCaldera FN-3781 XT
Size140 × 140 × 25 mm
Speed200–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3781 XT 140mm PWM Case Fan”, https://vextor7.com/item/6801334 (accessed 2026-10-22).