Hardware Spec Index

Brontix FN-4621 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4621-PRIME · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index745 (Case Fans scale)
Category rank#38,191
Street price$19
Power4 W
Performance per dollar39.21
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4621 Prime
Size140 × 140 × 25 mm
Speed400–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4621 Prime 140mm PWM Case Fan”, https://vextor7.com/item/13802108 (accessed 2026-10-19).