The Lenovo 8GB PC4-21300 DDR4-2666MHz Memory Module is an economical yet effective solution to multi-tasking and running multiple applications that are intensive and large by providing an 8 GB capacity. With better system rationales, this unbuffered, non-ECC CL19 DDR4 memory module will enhance the performance of your computer to new highs due to its rule 2666MHz frequency and 19-19-19 latencies, with its low roles. Optimize your computer-s power by installing this memory module and witness the dramatic enhancements with system performance.