Hardware Spec Index

Brontix FN-5540 Pro 140mm PWM Case Fan

Case Fans · Brontix · SKU FN5540-PRO · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index394 (Case Fans scale)
Category rank#698
Street price$19
Power3 W
Performance per dollar20.74
Released2025

Specifications

BrandBrontix
ModelBrontix FN-5540 Pro
Size140 × 140 × 25 mm
Speed200–1,500 RPM (PWM)
Airflow72.0 CFM
Static pressure1.43 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5540 Pro 140mm PWM Case Fan”, https://vextor7.com/item/1008700 (accessed 2026-10-23).