Startechcom 16in 9 pin serial male to 10 pin motherboard header panel mount cable turn a motherboard idc serial header into a panel mountable 9 pin rs232 serial connector fasten a db9 rs232 serial port to an existing face or wall plate add legacy hardware to newer systems 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