5ft male to female serial null modem cable 7 wire type and full handshaking connects your computer to device with COM port RS compatible interfaceWired as a 9 pin serial port NullModem cord that 23 46 78 line are cross ed TXRXRTS CTS DTRDSR wires are connected standard shielded DE9 rs cable male to female with AL foilDB9 female to male connector on each end equipped with screws to ensure an easy and solid serial extension connection for stable data communicationThe wires inside are of 30AWG gauge and easy to solder to and they connect to the pins in the order of the standard wire color code5 feet short null serial adapter m/f for hooking up PC laptop to some old RSC equipment like scanner Modem printer plotter camera barcode / embroidery machine touchscreen microcontroller factory test equipment