CH-340 chip USB to serial cable USB to RS232 USB 9 pin serial port
Support remote wake-up and power management, and support RS232 serial interface (Db9)
It allows you to use bridge or connectivity between the USB and serial port interface.
for Windows 98 / for SE / for ME / 2000 / for XP / for Vista / 7/8
1 x USB 2.0 to RS232 Chipset CH340 Serial Converter 9 Pin Adapter for Win7 / 8