Works with the following models of Apple, but not only:
MacBook Pro (17-inch 2011)
MacBook Pro (17-inch Early 2011)
MacBook Pro (15-inch 2011)
MacBook Pro (15-inch Early 2011)
MacBook Pro (13-inch 2011)
MacBook Pro (13-inch Early 2011)
iMac (27-inch Mid 2011)
iMac (27-inch Mid 2010)
iMac (21.5-inch Mid 2011)
Mac mini (Mid 2011)
Mac mini (Mid 2011 Server)