Hardware Spec Index

Teralux FN-3658 Ultra 140mm PWM Case Fan

Case Fans · Teralux · SKU FN3658-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index361 (Case Fans scale)
Category rank#36,865
Street price$9
Power3 W
Performance per dollar40.11
Released2020

Specifications

BrandTeralux
ModelTeralux FN-3658 Ultra
Size140 × 140 × 25 mm
Speed400–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise32 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3658 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/8391007 (accessed 2026-10-19).