OWC - 16GB OWC Memory Upgrade Kit - 4 x 4GB PC8500 DDR3 1066MHz SO-DIMMs for all Apple iMac 21.5" and 27" (October/2009) models

OWC Memory Upgrade Kit: 16.0GB (4x 4GB) PC8500 DDR3 Non ECC 1066 MHz 204 pin SO-DIMM High Quality 16.0 GB (4x 4GB) OWC Brand PC8500 DDR3 Non ECC 1066 MHz 204 pin SO-DIMM Memory upgrade kit Compatible with iMac 21.5" and 2" (October/2009) Models Compatible with iMac 21.5" and 27" (October/2009) Models, Compatible with PC desktops with Intel / AMD Process based PCs capable with the specifications listed above. Memory complies with JEDEC Specifications, document JESD79-3B Compatible with Mac systems: iMac 27-inch (Late 2009 Model ID: iMac10,1 and iMac11,1) iMac 21.5-inch (Late 2009 Model ID: iMac10,1) International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.