Hardware Spec Index

Teralux FN-4557 Ultra 140mm PWM Case Fan

Case Fans · Teralux · SKU FN4557-ULTRA · Released 2023 · Updated 2026-10-25

Key facts

Benchmark index369 (Case Fans scale)
Category rank#5,936
Street price$9
Power4 W
Performance per dollar41.00
Released2023

Specifications

BrandTeralux
ModelTeralux FN-4557 Ultra
Size140 × 140 × 25 mm
Speed300–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-4557 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/89938931 (accessed 2026-10-25).