Amazon.com: LEGO Mindstorms NXT 2.0 (8547) : Toys & Games
How to recover NXT from clicking brick syndrome
LEGO Instruction CD-ROM for set 8547 Mindstorms (64921) | Brick Owl - LEGO Marketplace
Vision Subsystem - Camera for NXT or EV3 (NXTCam-v4)
LEGO Mindstorms NXT 2.0
LEGO Mindstorms NXT Software v2.0 for Windows XP, Windows Vista, or Windows 7 and Macintosh OS X : The LEGO Group : Free Download, Borrow, and Streaming : Internet Archive