Crucial 16GB (1x16GB) DDR4 SODIMM 2666MHz CL19 1.2V Dual Ranked 2Rx8 Notebook Laptop Memory RAM ~KVR26S19D8/16CT16G4SFD8266?Speeds start at 2133 MT/s?Increase bandwidth by up to 30%?Reduce power consumption by up to 40% and extend battery life?Faster burst access speeds for improved sequential data throughput?Optimized for next generation processors and platforms?Available in modules up to 8GB and kits up to 32GB?Limited lifetime warranty