.hack//Quantum (ドットハック クワンタム, Dotto Hakku Kuwantamu) is an animated three episode OVA series by Kinema Citrus studio in Japan and presented by Bandai Visual. The series was initially scheduled to be released in November 2010, but this schedule was later changed. The first episode was released on January 28, 2011 with the following two episodes to be released in one month intervals. Excluding the all-CGI animation movie .hack//G.U.