Ideal for programmers, hardware engineers and DIY User. Compared to other USB to TTL UART adapters, this adapter not only supports 3.3V and 5V logic levels, but also adds support for 1.8V logic levels. At the same time it is equipped with a protective plastic case, this protective plastic case can effectively prevent static interference and various short circuits. Specification: Model: SH-U09C2 Main chip: FTDI FT232RL Pin Definition: CTS,RTS,RXD,TXD,GND,VCC Output VCC: 1.8V/3.3V/5V TTL Level: 1.8V/3.3V/5V USB interface: 2.0 The maximum speed: 3Mbps About indicator LED: PWM LED:Power Indicator RXD LED:The data transmission indicator flashes when there is data from the USB port. TXD LED:The data receiving indicator flashes when the USB port receives data. List of supported systems 1,Windows xp,7,8,10 2,Ubuntu 11.10, kernel 3.0.0-19 3,Mac OS X 10.3 to 10.8 (32 &64 bit) 4,Mac OS X 10.9 and above(64 bit) You can download the driver directly from FTDI's website Packing list: 1 X FTDI FT232RL USB to TTL Adapter with a plastic shell 1 X User Manual 1 X 4 PIN DuPont cable WARRANTY: DSD TECH offers a 1-year warranty and lifetime technical support for this USB-to-TTL adapter?If you meet any question, Please contact us, We will fix your issue within 24 hours. Important Notes This product uses FTDI FT232RL chip by default, because of the chip out of stock, some production batches use FTDI FT232RNL model chip . Please do not worry, FT232RNL is also the chip produced by FTDI, can completely replace FT232RL. If you still care about these please contact us.

WARRANTY:DSD TECH back this FTDI FT232RL USB to TTL UART adapter with 12 months warranty.If you meet any question, please contact us, we will fix your issue within 24 hours. Compatibility: This USB to TTL adapter is compatible with Windows 7, 8, 10 and various Linux OS and Mac OS. Application:Support EEPROM, Vendor ID re-write, unbrick routers ,program ESP8266 module, interface to GPS modules, flash firmware on hard drive, update transmitter, interface to set top box and other compatible UART interface devices. Protective case: Come with a transparent protective cg, this transparent protective cg to effectively prevent static interference from the hand and prevent unintentional short circuit. FTDI FT232RL IC:Built-in original FTDI FT232RL IC. Supports 5V, 3.3V and 1.8V Logic TTL levels,You can switch Logic levels by jumper.