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 blowers with PWM-controlled motors to minimize noise. Dimensions: 11.6 x 6.3 x 1.5 in. Exhaust: Rear Airflow: 100 CFM Noise: 20 dBA