Cumulative Worldwide Hardware Unit Sales (Sell-in)PlayStation®More than 102.4 million (As of March 31, 2012)PlayStation®2More than 155.0 million (As of March 31, 2012)PSP® (PlayStation®Portable)More than 76.4 million (As of March 31, 2012)PlayStation®3More than 87.4 million (As of March 31, 2017)