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Corsair Vengeance Series 16 GB (2 x 8 GB) DDR3 1600 MHz CL10 - PC RAM Corsair on LDLC
Crucial RAM 16GB Kit (2x8GB) DDR3 1600 MHz CL11 Memory for Mac CT2K8G3S160BM 100177437200 | eBay
Corsair Apple Certified 16 GB (2x8 GB) DDR3 1600MHz (PC3 12800) Laptop Memory 1.35V at Amazon.com