Features 1、For CH343G Chip: The serial communication module adopts CH343G chip, which supports higher communication rate than CH340G, up to 6Mbps; supports more serial port lo levels: 5/3.3V/2.5V1.8V 2、Scope of Application: The serial communication module supports for OS X, for Linux, for Android, for Win 7, for 8, for Win 8.1, for Win 10, for Win 11 3、Convenient and Practical: The USB to UART ttl adapter onboard TTL serial port 3.3V and 5V level conversion pins, can switch TTL communication level 4、Overvoltage Protection: The USB to UART ttl adapter onboard resettable fuse and TVS diode, anti overcurrent and overvoltage, anti static 5、Black Immersion Gold Process: The serial converter adapter adopts double sided black immersion gold process, which is durable and beautiful Specification Item Type: USB to UART Ttl Adapter Material: PCB Chip: CH343G Host Interface: Micro USB Device Interface: UART Communication Range: 50bps-6Mbps Support System: For OS X, for Linux, for Android,for Win 7, for Win 8, for Win 8.1, for Win 10, for Win 11 Package List 2 x USB to UART Ttl Adapter 2 x Adapter Cable