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 and 2.5V 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-U09C5 Main chip: FTDI FT232RL Pin Definition: CTS,RTS,RXD,TXD,GND,VCC,DSR,R1,DCD,DTR,RESET Output VCC: 1.8V/2.5V/3.3V/5V TTL Level: 1.8V/2.5V/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 SH-U09C5 USB to TTL Adapter with a plastic case 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. Protective case: Come with a protective case, this transparent protective case can effectively prevent static interference from the hand and prevent accidental short circuit. Not only provides access to UART Transmit (Tx), Receive (Rx), RTS#, CTS#, VCC and GND pins,but also provides access to DSR,R1,DCD,DTR,RESET pins. FTDI FT232RL Chip:Built-in original FTDI FT232RL Chip.The DSD TECH brand never uses cheap fake chips. Support 4 kinds of TTL levels:This is a versatile USB to TTL converter. It is powerful enough to handle almost all TTL level communications. It is compatible with 5V, 3.3V, 2.5V, 1.8V TTL levels.