Hardware Spec Index

Brontix FN-4005 Prime 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN4005-PRIME · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index369 (Case Fans scale)
Category rank#48,758
Street price$9
Power4 W
Performance per dollar41.00
Released2025

Specifications

BrandBrontix
ModelBrontix FN-4005 Prime
Size140 × 140 × 25 mm
Speed400–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4005 Prime 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/1698192 (accessed 2026-10-24).