Brand Robotale Model N/A Quantity 1 Color Black + red Material FR4 Features Extension board for official Arduino product Specification Compatible with the following official Arduino products: Arduino Uno 328 Arduino Diecimila / Duemilanove 328 Arduino Mega 2560(recommended) Arduino Mega 1280 Application Official Arduino products English Manual/Spec http://m5.img.dxcdn.com/CDDriver/CD/sku.256220.doc Keywords A product that works with official Arduino products. Other Insert it into the Arduino main board to create a USB host so that it can support USB keyboard mouse camera etc.; It can also connect android cellphone and support Google ADK. Thus you can control robot and other equipment on your cellphone. Packing List 1 x USB host shield