Mushkin Essentials – DDR3 Laptop DRAM – 8GB Memory Single SODIMM – DDR3L-1600MHz (PC3L-12800) CL-11 – 204-pin 1.35LV Notebook RAM – Low-Voltage – (992038) at Amazon.com
Silicon Power Hynix IC Compatible for Apple DDR3 DDR3L 16GB (2 x 8GB) RAM 1600MHz (PC3 12800) 204 pin CL11 1.35V Non ECC Unbuffered SODIMM Laptop Notebook Memory RAM Module Upgrade at Amazon.com
8GB DDR3-1600 PC3-12800 SODIMM Low Voltage SNPN2M64C/8G A7022339 Equivalent at Amazon.com