Object is a rack-mount module. On the front is a power switch and fuse. Where the original power supply module was mounted, is an open hole. (See linked record for power supply module.) A substitute power supply module has been attached inside the back panel and has its own power cord. On the back are four BNC connectors on the left labeled SYNCS, R, G, B, and one on the right labeled "KEYBOARD INPUT" (which would connect to one of the keyboard units in this lot), and a female DB-25 connector labeled "SERIAL PORT".
