Hardware Spec Index

Caldera FN-3691 Pro 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Caldera · SKU FN3691-PRO · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index946 (Case Fans scale)
Category rank#44,950
Street price$29
Power3 W
Performance per dollar32.62
Released2019

Specifications

BrandCaldera
ModelCaldera FN-3691 Pro
Size140 × 140 × 25 mm
Speed500–2,200 RPM (PWM)
Airflow105.6 CFM
Static pressure2.09 mmH₂O
Noise24 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3691 Pro 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/19944702 (accessed 2026-10-21).