Turn a motherboard idc serial header into a panel mountable 9 pin rs232 serial connector the pnl9m16 16 inch idc serial to panel mount serial cable features a 10 pin idc motherboard header connection on one end and a panel mount db9 male connector port on the other a simple answer for adding a db9 rs232 serial port to any computer system which has an rs232 serial panel mount receptacle this cost effective solution bridges the compatibility gap between modern computers and legacy s