Samsung ram memory 16GB kit (2 x 8GB) DDR3 PC3L-12800,1600MHz, 204 PIN SODIMM for laptops - Newegg.com
NeweggBusiness - 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 Memory Module - Low Voltage