Neo Forza 8GB DDR3-1600 PC3-12800 CL11 Single Channel SO-DIMM Memory Module - Micro Center
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
204-Pin DDR3L 1600 SO-DIMM | Transcend Information | MISUMI