This product comes with the following parts:
1x Linkbot-L (Joints 1 and 2 are movable for Linkbot-L. Joints 1 and 3 are movable for Linkbot-I)
1x 36" USB Cable
1 Year Extended Warranty 
 
The recommended add-ons for this product are
Linkbot Dongle
Inventor Accessory Pack
Arduino Compatible Uno Starter Kit
Linkbot Uno Pack
Robot Sensor Pack