Hardware Spec Index

Caldera FN-3924 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3924-ULTRA · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index599 (Case Fans scale)
Category rank#49,330
Street price$19
Power3 W
Performance per dollar31.53
Released2023

Specifications

BrandCaldera
ModelCaldera FN-3924 Ultra
Size140 × 140 × 25 mm
Speed300–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3924 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/22010839 (accessed 2026-10-22).