The DDR4 RAM is rated at 1.2V and has a latency of CL19. It can operate at a max of 2666MT/s.A memory upgrade should enable you to load programs faster, improve responsiveness of your desktop and offer smooth multitasking and running data-intensive applications.You will also see great improvements in even simpler, yet important process of working with Web-browsers and spread sheets.The RAM is tested to be of service to you for a long time.<br />Quick installation, instant results, and lasting reliability — all at an affordable price. That’s why CrucialBasics Memory is an easy way to improve performance and extend the life of your PC. ">