File:Lego mindstorms nxt main brick.jpg - Wikimedia Commons
Maximum Lego NXT: Building Robots with Java Brains - Bagnall, Brian: 9780973864915 - IberLibro
Lego NXT brick and some of its sensors and servomotors. | Download Scientific Diagram
LEGO 53788 4520887 Very Light Bluish Gray Mindstorms NXT - Complete Brick with Dark Bluish Gray Base | electricBricks : LEGO set and parts shop and database