Hardware Spec Index

Brontix FN-3943 Pro 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3943-PRO · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index649 (Case Fans scale)
Category rank#22,630
Street price$19
Power3 W
Performance per dollar34.16
Released2021

Specifications

BrandBrontix
ModelBrontix FN-3943 Pro
Size140 × 140 × 25 mm
Speed300–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise32 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3943 Pro 140mm PWM Case Fan”, https://vextor7.com/item/74555374 (accessed 2026-10-24).