LED Controller TC20 Silver LAMP-TC20S Features: High quality aluminum housing LCD screen for color lighting only one channels for PWM fans,Display CPU Speed 4-pin RGB LED connection Dual temperature sensors are included Specifications: Dimension 100mm *32mm *14mm Screen dimension 55mm * 18mm(wider screen) Power output Up to 20 watts Control channels 1 Channels DC Input +12V(SATA Connector) Output PWM Compatible PWM Fans Alarm Alarm temperature can be adjusted