This is the EV3 version of the "Basic Bot."

Mindstorm Ev3 Core Set, toy interlocking building set 45544 - New 

EV3 has been retired and you may not be able to find a new one. If you can't find a new one you could buy one of off Ebay or Facebook.

BrickLink: Mindstorm EV3 

Ebay: Mindstorm EV3 

Facebook Marketplace: LEGO Mindstorms - Education EV3 Core Set (item 45544)

Please let us know if you have any feedback.