Hardware Spec Index

Brontix FN-6657 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN6657-PRIME · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index462 (Case Fans scale)
Category rank#208
Street price$19
Power4 W
Performance per dollar24.32
Released2024

Specifications

BrandBrontix
ModelBrontix FN-6657 Prime
Size140 × 140 × 25 mm
Speed400–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise31 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-6657 Prime 140mm PWM Case Fan”, https://vextor7.com/item/51458059 (accessed 2026-10-21).