Timetec Hynix IC 8GB KIT(2x4GB) Compatible for Apple DDR3 1333MHz PC3-10600 for Early/Late 2011 13/15/17 inch MacBook Pro, Mid 2010 Mid/Late 2011 21.5/27 inch iMac, Mid 2011 Mac Mini - Newegg.com
New 16GB 4x4GB Memory RAM for Apple iMac DDR3-1333 MHz at Amazon.com