Lexar 8GB DDR4 2666MHz Desktop Memory – 8GB capacity desktop RAM module with a 2666MHz speed and 3200Mbps performance, 288-pin interface, CAS latency CL22, operating voltage of 1.2V for power efficiency, Supports operating temperatures from -20°C to 85°C on the surface and storage temperature of -55°C to 100°C, limited lifetime warranty