Uno Shield

It is the shield that adds RJ25 sockets to your Arduino UNO that will allow you to connect your Makeblock modules. In this way, you can effortlessly use your Makeblock modules with your Arduino UNO. Features: Connection possibility with 0.1" header connections and jumper cables; 6P6C RJ25 sockets; Operating voltage: 6-12V; Operating current: 1.5A;