The Simple Performance Equation: More Memory = A Faster Computer Maxing out your memory is the most cost-effective, easy DIY install solution to dramatically speeding up file transfers, app launches, and many other memory intensive tasks. The VisionTek DDR4 2666MHz (PC4-21300) Memory is a JEDEC standard DDR4 module. Increase your system performance with a quick install. Backed by a limited lifetime warranty and our US based support.