This is a USB TO TTL (C) converter, connecting the USB connector of the PC or other devices to the device with TTL logic level for data communication, for example, such as microcontrollers, sensors, etc. Onboard TTL serial port 3., 3V/5V level transilation circuit, for switching TTL communication level. Onboard 3x LED indicator, easily checking the operating status, convenient for programming / debugging , Compatible withMac, Win7/8/8., 1/10/11, Linux, Android,etc. waveshare FT232RNL Conversor de interface USB para RS232/485/422/TTL This is a USB TO TTL (C) converter, connecting the USB connector of the PC or other devices to the device with TTL logic level for data communication, for example, such as microcontrollers, sensors, etc. Industrial USB TO TTL 6pin serial cable, onboard power... Industrial USB To TTL Converter 6pin Serial Cable 1M Length Comes with Online Tutorial and Online Development Resource: n9., cl/q1sby