Specifications: Support the Google Android ADK functionality Supporting Android Phone: G1, Nexus One, Nexus S, Motorola Droid X. Note: mobile phone system need to upgrade to Android 2.3.4, tablet PCs need to upgrade to Android 3.1. Size:55*53.3*23.8mm/2.16*2.1*0.94in. Compatible with following hardware: for Arduino Mega 2560 (Recommended). for Arduino Mega 1280. for Arduino Uno 328. for Arduino Diecimila / Duemilanove 328. Information Website for your reference: http://www.circuitsathome.com/category/mcu/for arduino https://github.com/felis/USB_Host_Shield_2.0 How to estabish ADK hardware Platform: http://www.circuitsathome.com/mcu/building-google-adk-hardware-from-standard-components. Package Includes: 1 * USB Host Shield

Package Included:1 * USB Host Shield. The USB power pin have the 3.3Vin and 5Vin pins, which needs to be soldered for the shield to work. When achieves the USB HOST function, USB Host Shield can communicate with other USB devices, support USB HUB function as well. Compatible with following hardware: for Arduino Mega 2560 (Recommended); for Arduino Mega 1280; for Arduino Uno 328; for Arduino Diecimila / Duemilanove 328. USB Host Shield support the Google Android ADK and Android Phone: G1, Nexus One, Nexus S, Motorola Droid X. (Note:Mobile phone system needs to upgrade Android 2.3.4, Tablet PC needs to upgrade to Android 3.1).