G.Skill 8GB (2 x 4GB) Ripjaws V Series DDR4 PC4-17000 2133MHz Intel Z170 Intel X99 Desktop Memory F4-2133C15D-8GVR at Amazon.com
G.Skill Ripjaws X Series 16 GB (2 x 8 GB) 240-Pin SDRAM (PC3-12800) DDR3 1600 CL10-10-10-30 1.50V Dual Channel Desktop Memory Model F3-12800CL10D-16GBXL at Amazon.com