Rogueware 4GB DDR4 2666MHz Notebook Memory Module Rogueware offers extremely reliable, high performance, value desktop and notebook memory that is highly compatible and is guaranteed to improve performance. Designed and tested to meet JEDEC industry standards, Rogueware Value RAM lets you purchase memory that you know will work first time, every time. Features: High Performance JEDEC Spec DDR4 Micron/Samsung Based Memory IC for maximum compatibility Black-Coated PCB to enhance cooling Designed for Notebooks and Mini PC Specifications: Module Size: 4GB Module Type: Short DIMM (SODIMM) Pin Count: 260-Pin Memory Speed: 2666MHz Cache Latency (CL IDD): 19 Cycles Row Cycle Time: 45ns Refresh to Active Time: 350ns Voltage: 1.2 Volt Operating Temperature: 0°C to +85°C Warranty: Limited Lifetime