TOOGOO(R) USB to RS232 Serial 9 Pin DB9 Cable Adapter Convertor Provide a simple and convenient way to connect any USB ports and serial devices with 9-Pin RS232 interface Your fast solution to utilize the peripheral with serial or parallel port in an easy-to-use environment such as plug-n-play and hot swap function Used to connect a parallel interface printer to a USB port on a PC to allow high-speed printing Support remote wake-up and power management