No need to buy 3 single adapter
This 3in1 cable suits ideal to connect a MacBook, MacBook Air, MacBook Pro, iMac, Mac mini and Mac Pro to a Beamer, LCD/TFT Monitor, LED or Plasma-TV with DP, HDMI type A or DVI interface, for example. A concurrent use of the DP, HDMI type A or DVI data link is not possible! The display resolution depends on the used connection. The DP and HDMI output supports Audio for iMac (End 2009) and MacBook Pro (Mid 2010). Automatic display recognition.