Hardware Spec Index

Teralux FN-3998 Ultra 140mm PWM Case Fan

Case Fans · Teralux · SKU FN3998-ULTRA · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index325 (Case Fans scale)
Category rank#2,457
Street price$9
Power3 W
Performance per dollar36.11
Released2020

Specifications

BrandTeralux
ModelTeralux FN-3998 Ultra
Size140 × 140 × 25 mm
Speed500–2,300 RPM (PWM)
Airflow110.4 CFM
Static pressure2.19 mmH₂O
Noise29 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3998 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/1046446 (accessed 2026-10-22).