G.SKILL Ripjaws Z Series 32GB (8 x 4GB) 240-Pin SDRAM DDR3 2133 (PC3 17000) Desktop Memory F3-17000CL9Q2-32GBZH 32GB G.Skill RipjawsZ Series Memory kit Quad2 channel kit = 8x 4GB modules DDR3 2133MHz PC3-17000 CL9 (9-11-10-28)