Hardware Spec Index

Caldera FN-4640 Pro 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN4640-PRO · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index397 (Case Fans scale)
Category rank#35,607
Street price$19
Power4 W
Performance per dollar20.89
Released2025

Specifications

BrandCaldera
ModelCaldera FN-4640 Pro
Size140 × 140 × 25 mm
Speed200–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise33 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4640 Pro 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/16625562 (accessed 2026-10-22).