Komputerbay 8GB (2x 4GB) DDR3 SODIMM (204 pin) 1333Mhz PC3-10600 (9-9-9-25) Laptop Noteboo - Komputer Bay
Timetec Hynix IC 4GB Compatible for Apple DDR3 1333MHz PC3-10600 SODIMM Memory for Early/Late 2011 13/15/17 inch MacBook Pro, Mid 2010 and Mid/ Late 2011 21.5/27 inch iMac, Mid 2011 Mac Mini (4GB) - Newegg.com
Corsair CMSA4GX3M1A1333C9 4gb 1333mhz Ddr3 Sodimm C9 Single Mod Mac Mem Imac Macbook for $24.40.
OWC 16.0GB (4 x 4GB) 1333MHz 204-Pin DDR3 SO-DIMM PC3-10600 CL9 Memory Compatible with iMac (OWC1333DDR3S16S)