Hardware Spec Index

Teralux FN-3851 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Teralux · SKU FN3851-ULTRA · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index596 (Case Fans scale)
Category rank#30,292
Street price$19
Power3 W
Performance per dollar31.37
Released2021

Specifications

BrandTeralux
ModelTeralux FN-3851 Ultra
Size140 × 140 × 25 mm
Speed300–2,400 RPM (PWM)
Airflow115.2 CFM
Static pressure2.28 mmH₂O
Noise29 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3851 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/8207501 (accessed 2026-10-24).