One of the critical selling features of the OCZ VBoost drive is that it is certified for use with Vista ReadyBoost, an innovation that lets you boost the performance of your Windows Vista-based computer by using the flash memory within the drive as a supplement to your on-board RAM. It's not quite as effective as truly having an extra four gigs of RAM, but it's a lot better than nothing. By providing a supplementary memory cache, the drive rewards you with faster retrieval and storage of files.