Hardware Spec Index

Caldera FN-3665 Pro 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN3665-PRO · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index606 (Case Fans scale)
Category rank#49,688
Street price$19
Power2 W
Performance per dollar31.89
Released2025

Specifications

BrandCaldera
ModelCaldera FN-3665 Pro
Size140 × 140 × 25 mm
Speed300–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3665 Pro 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/97527079 (accessed 2026-10-24).