Audio-Technica AT8631 Joining Plate
The Audio-Technica AT8631 Joining Plate is compatible with System 10 PRO, 3000 Series (Third and Fourth Generation), 2000 Series, ATW-DA49 and ATDM-0604 Digital SmartMixer®. Allows two half-rack units to be mounted in a single 19" rack space. Includes mounting screws.