1. The main chip is CP2102. A virtual serial port is generated after the driver is installed 2. USB power supply, the output ports include 3.3V ( less than 40mA), 5V, GND, TX, RX, the signal pin level is 3.3V, positive logic 3. Onboard status indicator light, transceiver indicator light, the status indicator light will be always on after the driver is installed correctly, the transceiver indicator light will flash during communication, the higher the baud rate, the lower the brightness 4. Support baud rates from 300bps to 1Mbps 5. Communication format support: 1) 5, 6, 7, 8 data bits; 2) Support 1, 1.5, 2 stop bits; 3) Odd, even, mark, space, none 6. Support operating systems: Windows Vista/XP/Server 2003/200, Mac OS-X/OS-9, Linux 7. The USB head is male and can be directly connected to the computer USB port 8. SMT components are produced using SMT technology and have stable quality Colour:Black & Red Material:Metal Package Contents: 1 * black chip module 1 * red chip module