Kingston ValueRAM 8GB 1600MHz DDR3 Non - ECC CL11 DIMM STD Height 30mm Desktop Memory KVR16N11H/8 at Amazon.com
G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin PC RAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBRL - Newegg.com
Rasalas 8GB DDR3 PC3L-12800S 8GB 1600 MHz DDR3 SODIMM RAM for Intel AMD Laptop, MacBook Pro Mid 2012, iMac Late 2012/ Early/Late 2013, Late 2012/2013, Retina 5K Display, Mac Mini at Amazon.com