Hardware Spec Index

Brontix FN-4040 Pro 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4040-PRO · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index347 (Case Fans scale)
Category rank#30,834
Street price$9
Power3 W
Performance per dollar38.56
Released2023

Specifications

BrandBrontix
ModelBrontix FN-4040 Pro
Size140 × 140 × 25 mm
Speed500–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise34 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4040 Pro 140mm PWM Case Fan”, https://vextor7.com/item/8326523 (accessed 2026-10-22).