1、Virtual Keyboard: USB development board can simulate a virtual keyboard, allowing it to send key commands to the connected computer like a regular keyboard, which is useful for security research, automated testing, and custom device control. 2、High Performance Microcontroller: Equipped with ATMEGA32U4, a 32 bit microcontroller running at 5V 16MHz, providing powerful computing capabilities and low power consumption. 3、USB Interface: Built in USB interface allows for programming and power supply through USB, supporting virtual keyboard and mouse modes to easily achieve complex USB device functions. 4、Efficient Solution: Compared to more high end microcontroller boards, the ATMEGA32U4 development board offers a high cost performance ratio, making it ideal for beginners and projects with budget constraints. 5、Wide Application: Suitable for education, DIY projects, as well as professional applications such as robot control, data collection, or IoT devices, providing versatility and performance across various fields.