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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
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Apple iMac A1311 21.5" Desktop - MB950LL/A (October, 2009) for sale online | eBay
Amazon.com: Genuine 8X DL SuperDrive Optical Drive for Apple iMac Late 2009 21.5 Inch Core 2 Duo 3.06 A1311 MB950LL/A MB950 Desktop PC, Super Multi DVD+-R/RW DL DVD-RAM Burner CD-RW Writer :