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 and transceiver indicator light; the status indicator light stays on after the driver is installed correctly; the transceiver indicator light flashes during communication; higher baud rate results in lower brightness 4. Supports baud rates from 300 bps to 1 Mbps 5. Communication format support: 5, 6, 7, or 8 data bits; 1, 1.5, or 2 stop bits; odd, even, mark, space, or no parity 6. Supports operating systems: Windows Vista/XP/Server 2003/2000, Mac OS-X/OS-9, Linux 7. USB Type-A male connector for direct connection to computer USB port 8. Manufactured using SMT components for stable quality Color: Black & Red Material: Metal Package Contents: 1 x Black chip module 1 x Red chip module Only the above package content is included; other products are not included Note: Light reflection and differences in display screens may cause slight variations in color compared to the actual item. Measurement error allowance is +/- 1-3 cm