Hardware Spec Index

Brontix FN-4721 Max 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4721-MAX · Released 2019 · Updated 2026-10-24

Key facts

Benchmark index741 (Case Fans scale)
Category rank#21,821
Street price$19
Power4 W
Performance per dollar39.00
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4721 Max
Size140 × 140 × 25 mm
Speed300–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise28 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4721 Max 140mm PWM Case Fan”, https://vextor7.com/item/4206646 (accessed 2026-10-24).