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Amazon.com: Crucial RAM 16GB Kit (2x8GB) DDR3 1600 MHz CL11 Memory for Mac CT2K8G3S160BM : Everything Else
G.SKILL F3-1600C9D-16GXM Ripjaws X Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory at Amazon.com
Amazon.com: Crucial RAM 16GB Kit (2x8GB) DDR3 1600 MHz CL11 Memory for Mac CT2K8G3S160BM : Everything Else