DUOMEIQI Pc3-10600 ddr3 ram 8GB (2 X 4GB) 1333Mhz ddr3 Sdram 2Rx8 Pc3 10600s Sodimm Pc3 10600 ddr3-1333 Pc3-10600S 204-Pin CL9 1.5V Non-Ecc Unbuffered For Laptop at Amazon.com
16GB KIT 2X8GB 1333MHZ DDR3 CL9 at Amazon.com
A-Tech 8GB (2x4GB) RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010, Mid 2011, Late 2011), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com