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Kingston ValueRAM 8GB Kit (2x4GB) 1333MHz DDR3 Non - ECC CL9 DIMM SR x8 STD Height 30mm Desktop Memory KVR13N9S8HK2/8 at Amazon.com
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com