Wide Compatibility This USB Host Shield is designed to be for Google ADK and supports popular Arduino boards such as UNO and MEGA, making it ideal for various embedded and DIY projects. MAX3421E USB Interface Chip Built around the MAX3421E USB host controller, this development board module provides stable and reliable USB communication, allowing you to connect USB devices including keyboards, mice, gamepads, and more. Easy Integration with Arduino Standard Arduino shield layout and pin configuration enable simple stacking on UNO and MEGA boards. It supports direct programming through the Arduino IDE using common USB Host and ADK libraries. Ideal for Google ADK Projects Perfect for Android Open Accessory (ADK) development, this shield allows your Arduino to communicate with Android devices via USB, supporting interactive control, data exchange, and custom Android accessory applications. Color: Blue Material: plastic Package Contents: 1*development board module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.