Windows Vista's ReadyBoost allows you to increase the performance of your PC by using your flash drive as extra cache memory.
“OCZ is pleased to release the sleek and cap-less VBoost USB drive, which is designed not only to be an exceptional USB flash drive but also for consumers looking to take advantage of the benefits of ReadyBoost,” said Alex Mei, Executive VP of OCZ Technology Group. “The VBoost drive is optimized for fast easy access and increases system performance when paired with the Microsoft Windows Vista ReadyBoost feature.”
The OCZ VBoost flash drive is available in capacities of 1GB, 2GB and 4GB.