Hardware Spec Index

Brontix FN-6721 Pro 120mm PWM Case Fan

Case Fans · Brontix · SKU FN6721-PRO · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index217 (Case Fans scale)
Category rank#12,870
Street price$9
Power4 W
Performance per dollar24.11
Released2026

Specifications

BrandBrontix
ModelBrontix FN-6721 Pro
Size120 × 120 × 25 mm
Speed400–3,000 RPM (PWM)
Airflow102.0 CFM
Static pressure3.30 mmH₂O
Noise35 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-6721 Pro 120mm PWM Case Fan”, https://vextor7.com/item/1789916 (accessed 2026-10-20).