G.SKILL Ripjaws Series 8GB 204-Pin DDR3 SO-DIMM DDR3L 2133 (PC3L 17000) Laptop Memory Model F3-2133C11S-8GRSL Cas Latency: 11 Timing: 11-11-11-31 Voltage: 1.35V Features: High quality SO-DIMM memory 1.35V ultra low voltage for 3rd and 4th Gen Intel Core Processors