WinSystems CBL-247-1 Multi-I/O Adapter Cable.Multi-I/O Connector Cable Adapter - WinSystems offers the optional CBL-247-1, Multi-I/O cable adapter for the COM1, COM2, LPT1 and keyboard. These four ports are combined into one 50-pin header at the edge of the board. The CBL-247-1 is a 1-foot adapter cable that offers a more convenient termination. COM1 and COM2 are 9-pin male “D” connectors with strain relief. LPT1 is a 25-pin “D” female socket with strain relief. The keyboard is a standard 6-pin PS/2 connector socket.