Hardware Spec Index

Caldera FN-3931 Ultra 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN3931-ULTRA · Released 2021 · Updated 2026-10-18

Key facts

Benchmark index940 (Case Fans scale)
Category rank#34,104
Street price$29
Power3 W
Performance per dollar32.41
Released2021

Specifications

BrandCaldera
ModelCaldera FN-3931 Ultra
Size140 × 140 × 25 mm
Speed300–2,400 RPM (PWM)
Airflow115.2 CFM
Static pressure2.28 mmH₂O
Noise25 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3931 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/201980 (accessed 2026-10-18).