The USB-Parallel cable allows your PC to print to any parallel printer or device connected through the USB port. Just plug the USB connector of the cable into the USB port of your PC and the other end into the centronics connector of the parallel printer. USB (Universal Serial Bus) interface provides up to 12 Mbps data throughput, so printing is much faster compared when connected to standard parallel port. The USB-Parallel cable also provides true plug-n-play and hot-plug capability - simply plug in the cable under the Windows operating system and the cable will be instantly detected.