This Servo Motor Expansion Module is .NET Gadgeteer compatible, which uses the .NET Micro Framework to make writing code for your device as easy as writing a desktop, Web or Windows Phone application. This module expands the Gadgeteer socket to seven digital IO so that more servos could be attached to the main board. Through the switch onboard, you can select whether using the external power or internal one.
Caution: Take care of the label onboard, the module only supports servo and digital IO device. Connet other modules may damage the main board.