Compatible to all Windows laptops supporting 8GB SODIMM at speed DDR3 1600Mhz and also to all Mac"s from year 2012 Compatible Apple Mac"s models: MacBook Pro 2.3GHz Intel Core i7 (15-inch DDR3) Mid-2012 MacBook Pro 2.5GHz Intel Core i5 (13-inch DDR3) Mid-2012 MacBook Pro 2.6GHz Intel Core i7 (15-inch DDR3) Mid-2012 MacBook Pro 2.7GHz Intel Core i7 (15-inch DDR3) Mid-2012 MacBook Pro 2.9GHz Intel Core i7 (13-inch DDR3) Mid-2012 iMac 2.9GHz Quad-Core Intel Core i5 (27-inch, Late 2012) iMac 3.2GHz Quad-Core Intel Core i5 (27-inch, Late 2012) iMac 3.4GHz Quad-Core Intel Core i7 (27-inch, Late 2012) iMac 3.4GHz Quad-Core Intel Core i5 (27-inch, Late 2013) iMac 3.5GHz Quad-Core Intel Core i7 (27-inch, Late 2013) Mac Mini 2.3GHz Quad-Core Intel Core i7 - Late 2012 Mac Mini 2.5GHz Dual-Core Intel Core i5 - Late 2012 Mac Mini 2.6GHz Quad-Core Intel Core i7 - Late 2012 Mac mini (Intel Core i5 2.3Ghz) DDR3 - Mid 2011 Mac mini (Intel Core i5 2.5Ghz) DDR3 - Mid 2011 Mac mini (Intel Core i7 2.0Ghz) DDR3 - Mid 2011 Server Mac mini (Intel Core i7 2.7Ghz) DDR3 - Mid 2011 PLEASE NOTE, THIS ITEM IS NOT COMPATIBLE TO 2012 and 2013 APPLE MACBOOK PRO WITH RETINA DISPLAY