1、Chip: Using the new version of CH343G chip, compared with CH340G, it supports higher communication rate, up to 6Mbps; supports more serial port lo levels: 5/3V5V8V. 2、Applicability: Adopt double sided black immersion gold process, durable and beautiful, support for OS, for Linux, for Android, for Windows7/8/8.1/10/1 3、Multifunctional: On board resettable fuse and transient suppression diode, anti overcurrent and overvoltage, anti surge, anti static, improve shock resistance, stable and safe communication. 4、Serial Port: The onboard TTL serial port 3V and 5V level conversion pins can switch the TTL communication level. 5、Output: Support output 3V/5V, the module is powered by USB, the jumper hat must be jumped to 3V/5V. 1 x Serial Communication Module1 x Cable Item Type: Serial Communication ModuleMaterial: PCBHost Interface: USBDevice Interface: UARTCommunication Range: 50bps - 6mbpsUSB Interface:Interface Form: MicroInterface Protection: Resettable Fuse, ESD Electrostatic ProtectionUART Interface:Interface Form: 6PN Curved Pin Header InterfaceInterface Protection: 10 Protection Diode Circuit