OWC 12GB (8GB+4GB) PC3-12800 DDR3L 1600MHz SO-DIMM 204 Pin CL11 Memory Upgrade Kit Compatible with iMac, Mac Mini, and MacBook Pro (OWC1600DDR3S12S) at Amazon.com
For SK Hynix 4GB 1RX8 DDR3L 1600MHz PC3L-12800S CL11 SODIMM Laptop RAM Memory #N | eBay
Kingston® KCP3L16SD8/8 8GB (1 x 8GB) DDR3L SDRAM SoDIMM 204-pin DDR3L-1600/PC3L-12800 Server RAM Mod | Quill.com