Features: This module can connect 3 video sources and you can switcher between different video sources with a 3 position switcher to your ground station. If you have multiple cameras on your plane, this is what you need. 3Channel Switchover module,adopts high speeds video switcher chip,effectively reduce the vibration of the Video Images. The control channel can be any proportional channel or 3-position switcher channel. (2-position switcher channel can only switcher within two video input signal. Adopts high speeds video switcher chip, effectively reduce the vibration of the Video Images. Supports 5-12V power supply, and the control signal use PWM signal for stable performances. Specifications: Material:Metal Control Signal: PWM IN1:1000us ± 200 IN2: 1500us ± 200 IN3: 2000us ± 200 Package Includes: 1Piece Video Switcher Module note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.