Crestron DM-TX-401-C DigitalMedia 8G+ Transmitter 401 DigitalMedia 8G+ transmitter and multimedia interface Built-in 4x1 AV switcher with front panel input selection, auto-switching, and analog audio-breakaway QuickSwitch HD technology achieves fast, reliable switching Connects to a DM switcher or receiver over one CAT5e or Crestron DM 8G cable Provides DisplayPort, HDMI, RGB/component, and composite video inputs