Hardware Spec Index

Brontix FN-4521 Pro 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN4521-PRO · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index204 (Case Fans scale)
Category rank#13,695
Street price$9
Power4 W
Performance per dollar22.67
Released2026

Specifications

BrandBrontix
ModelBrontix FN-4521 Pro
Size140 × 140 × 25 mm
Speed400–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4521 Pro 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/62949651 (accessed 2026-10-25).