Used but fully functional 8 channel site remote control. Has 8 channels of status (on/off), telemetry (analog levels) and command(up commands/down commands). I do not have the 9 volt DC power supply but it is available on Amazon, nor do I have the plug in screw terminals for I/O connections but again these are available through Amazon. This unit currently sells for $1,500.+ at Broadcast Supply so this is a bargain and well worth the effort to buy the missing pieces. Thanks for looking!