G.SKILL 16GB (2 x 8G) Ripjaws Series DDR3 PC3-17000 CL11 SO-DIMM Laptop Memory F3-2133C11D-16GRSL 16GB G.Skill Ripjaws DDR3 Laptop upgrade kit Low-voltage DDR3 memory, 1.35V Consists of 2x 8GB single modules, 204 pins 2133MHz PC3-17000 SO-DIMM Timings of CL11 (11-11-11-31) at 1.35V