A-Tech 16GB (4 x 4GB) PC3-8500 DDR3 1066/1067 MHz RAM for iMac Late 2009 21.5-inch / 27-inch | 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
4GB DDR3 PC3-8500S SODIMM RAM 1066/1067MHz For Apple PC3-8500S 0x80ce 1066MHz | eBay
4GB DDR3 PC3-8500S SODIMM RAM 1066/1067MHz For Apple PC3-8500S 0x80ce 1066MHz | eBay
Timetec 8GB Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 for Mac Book (Mid 2010 13-inch), Mac Book Pro (Mid 2010 13-inch), iMac (Late 2009 27-inch), Mac Mini (Mid 2010) SODIMM MAC
parts-quick 8GB 2X 4GB PC3-8500 1067MHz DDR3 Memory Compatible with Apple MAC SODIMM 204 pin RAM at Amazon.com