Hardware Spec Index

Teralux FN-9857 Pro 120mm PWM Case Fan

Case Fans · Teralux · SKU FN9857-PRO · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index411 (Case Fans scale)
Category rank#27,936
Street price$9
Power4 W
Performance per dollar45.67
Released2019

Specifications

BrandTeralux
ModelTeralux FN-9857 Pro
Size120 × 120 × 25 mm
Speed400–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise34 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-9857 Pro 120mm PWM Case Fan”, https://vextor7.com/item/1259652 (accessed 2026-10-21).