A quiet fan system designed for cooling routers, modems, game consoles, and other AV components. Protects components from overheating, performance issues, and shortened lifespans. Programming features two thermal trigger modes and four speed control options. Contains two dual-ball bearing fans with PWM-controlled motors to minimize noise. Dimensions: 11.6 x 6.3 x 1.5 in. Exhaust: Top Airflow: 140 CFM Noise: 19 dBA