NEMIX RAM 8GB 2X4GB DDR3 Memory for Apple iMac 2009 - Newegg.com
iMac RAM for Model 9.1 to 11.1 | DDR3-1066MHz | 4GB | MacMemory.com
iMac Memory for Models 10.1 and 11.1 | 16GB (4GBx4) | MacMemory.com
8GB kit (2x4GB) DDR3 1066 SODIMM for Apple iMac (2009), MacBook Pro (2 – Aplus Technology
Timetec 16GB KIT(4x4GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 CL7 Dual Rank for iMac (Late 2009 21.5-inch / 27-inch) SODIMM Memory MAC RAM Upgrade for iMac 10,1 and iMac 11,1 at Amazon.com
Early 2009 model iMac Computer, DDR3 8GB (2x4GB) RAM Replacement - YouTube