Name:  R2-V4 name:  R2-V4 line:  Disney Droid Factory release date:  May, 2012 source:  - note:  This is the fourth of five R2 astromech versions (thus V4) released in the first wave of Disney Droid Factory. link:  Adam Pawlus' review Wookieepedia:  astromech droids. Wookieepedia:  R2 series.