Hardware Spec Index

Caldera FN-4391 XT 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4391-XT · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index334 (Case Fans scale)
Category rank#11,732
Street price$9
Power3 W
Performance per dollar37.11
Released2025

Specifications

BrandCaldera
ModelCaldera FN-4391 XT
Size140 × 140 × 25 mm
Speed500–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4391 XT 140mm PWM Case Fan”, https://vextor7.com/item/44553222 (accessed 2026-10-23).