The JLCooper Eclipse Series Joiner Kit (Midnight) is used to join two or more Eclipse style controllers into one seamless unit. Featuring two large openings, the joiner kit allows you pass data and power cables for transfer of data or power between the master and the expansion units. The joiner kit sports a midnight finish. Joins two or more Eclipse style controllers into one seamless unit Integrates two large openings Allows passing data and power cables between the master and the expansion units Sports a midnight finish