Rogueware 4GB DDR3L 1600MHz Low Voltage Value SODIMM Notebook Memory Module (RVR1600LC11SD4GB) - Module Size: 4GB, Module Type: Short DIMM (SODIMM), Memory Speed: 1600MHz, Cache Latency (CL IDD): 11 Cycles, Row Cycle Time: 48ns, Refresh to Active Time: 260ns, Voltage: 1.35 Volt, Operating Temperature: 0°C to +85°C