SBIG Relay Adapter Box. This is a necessary item if you wish to use one of the SBIG ST-5//7/8/9/10 cameras with a Losmandy mount or other mount that does not use a digital interface. It isolates the camera from the mount and safely triggers the corrections…otherwise; you can burn out the electronics of the mount! Selling for $65, inc. S&H in CONUS. Thank you.