Hardware Spec Index

Caldera FN-3691 Pro 120mm PWM Case Fan

Case Fans · Caldera · SKU FN3691-PRO · Released 2024 · Updated 2026-10-23

Key facts

Benchmark index640 (Case Fans scale)
Category rank#10,674
Street price$19
Power4 W
Performance per dollar33.68
Released2024

Specifications

BrandCaldera
ModelCaldera FN-3691 Pro
Size120 × 120 × 25 mm
Speed500–2,800 RPM (PWM)
Airflow95.2 CFM
Static pressure3.08 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3691 Pro 120mm PWM Case Fan”, https://vextor7.com/item/82882430 (accessed 2026-10-23).