1Mini USB Host allows for Arduno (Pro mini version only) to implement the USB Host function and other USB devices. 2Support USB HUB function. 3Easy to operate, anti-aging, prolong service life. 4Professional chip set provides superior performance in the system. 5Made of high quality materials, which can effectively avoid corrosion and wear and are durable. 6Precise notches and interfaces ensure perfect compatibility, suitable for installation locations, and easy installation.Condition: 100% Brand New Item Type: USB Host ShieldMaterial: ABS + chip Voltage: DC3.3V power supply Communication interface: Serial Peripheral Interface Compatible for Arduno accessories: for Arduno 328 Arduno Diecimila/Duemilanove 328 Arduno Mega 2560 for Arduno Mega 1280. Support forGoogle Android ADK function, support for Android mobile phone type; G1, forNexus One Nexus s. Droid X(mobile system needs to be upgraded to for Android2.3.4, tablets need to upgrade to for Android3.1)1 x USB Host Shield