A Memory Upgrade That Gives More Designed to help your system run faster and smoother, this DDR4 SODIMM series offers up to 2666MT/s. Plus, DDR4 technology is up to twice as fast as its predecessor, DDR3, delivering more bandwidth and more energy efficiency. A simple upgrade allows for faster application load times, increased responsiveness, and the ability to handle data-intensive programs with ease. Extra Memory, Extra Energy Savings Too More memory is an easy cure for a slow computer, but it can also increase energy expenditure and overall stress on the system hardware. In addition to a performance upgrade, this DDR4 SODIMM series provides smarter energy consumption with a lower 1.2V voltage. This reduces power usage compared to the previous DDR3 1.5V module. This DDR4 SODIMM series is compatible with a wide range of laptops and notebooks.