OWC 8GB PC3-12800 DDR3L 1600MHz SO-DIMM 204 Pin CL11 Memory Module Upgrade Compatible with iMac, Mac Mini, and MacBook Pro (OWC1600DDR3S8GB) at Amazon.com
Crucial 8GB DDR3L-1600 SODIMM Memory for Mac | CT8G3S160BM | Crucial.com
8GB DDR3L Low Voltage 1600 MHz (PC3-12800) CL11 SODIMM Memory - Notebook RAM - VisionTek | Dell USA