One 8GB module of 1600MHZ DDR3 memory backed by a lifetime warranty and free technical support from the industry leader in PC memory designed and tested for compatibility in select Apple notebooks . Apple - iMac 27-inch (Late 2012) Core i5/i7, Apple - Mac mini Core i5 2.3/2.5 (Mid 2011), Apple - Mac mini Core i5/i7 (Late 2012), Apple - Mac mini Core i7 2.0/2.7 (Mid 2011), Apple - Mac mini Server Core i7 (Late 2012), Apple - Mac mini Server Core i7 2.0/2.7 (Mid 2011), Apple - MacBook Pro 13-inch and 15-inch (Mid 2012).