EZSync FTDI Chip Usb to RS232 Serial Adapter Cable, CNC Controls Programming Cable, 25 Pin DB25 Male Connector, 1.5m, FTDI UC-232R US-232R Compatible, EZsync014 1.5m(60 inches) industrial grade USB to RS232(DB25 Male) adapter cable. It is an ideal solution for computer to communicate with many serial devices directly through USB port such as CNC, PLC, plotter, modem, Scanner etc This cable is designed to make connection between USB port and serial devices(RS232), NOT for parallel printer or other devices based on parallel protocol (IEEE-1284), even though both have DB25 connector. It is a USB to Serial "NULL Modem" cable with Software Handshaking( Xon\Xoff) using only three signals: TXD(Pin2), RXD(pin3) and GND(pin7). Check your devices setup prior to purchase. Works with USB 1.1 & 2.0 Host and Hub ports. Powered directly by USB port, no external power adapter required. The TXD/RXD traffic is indicated by two LEDs(red/green) over-molded in the USB clear case. Industry Standard FTDI chip set & device drivers to ensure maximum compatibility and superior reliability for industrial application Heavy duty metal DB25 connector with locking screws on one end, transparent plastic USB housing on the other end of the cable with LEDs indicating data traffic