The Z-Drive is based on cutting-edge PCI Express 2.0 architecture that breaks through the performance barriers previously found with SATA interface. Offering a truly enthusiast-grade storage upgrade from traditional hard disc drives, OCZ¿s Z-Drive utilizes a combined 256MB of local cache and an onboard RAID controller, to provide a complete solution in a compact form factor. Superior Flash-based Storage Technology. The OCZ Z-Drive is the result of the latest breakthroughs in technology building on the advantages of flash-based storage, delivering incredible performance that translates to professional-class data storage. Z-Drives feature exceptional speeds all while delivering lowered power consumption, ultra-fast data access, superior durability, and lower cost per ownership compared to conventional hard drives when factoring in the need for multiple drives and a separate RAID controller. Maximize your Storage Capabilities. In configurations of 250GB, 500GB, and massive 1TB capacities, the OCZ Z-Drive offers ample room to create a high performance storage array for enthusiast high performance systems.