Hardware Spec Index

Teralux FN-7857 Ultra 140mm PWM Case Fan

Case Fans · Teralux · SKU FN7857-ULTRA · Released 2022 · Updated 2026-10-18

Key facts

Benchmark index722 (Case Fans scale)
Category rank#37,987
Street price$19
Power4 W
Performance per dollar38.00
Released2022

Specifications

BrandTeralux
ModelTeralux FN-7857 Ultra
Size140 × 140 × 25 mm
Speed400–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise22 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-7857 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/1161945 (accessed 2026-10-18).