Providing a massive amount of storage capacity in a compact, sleek 2-drive device, the LaCie Two Big comes with the fastest interface - SATA II - and secure RAID technology. Simplified controls, including a RAID selection switch, make it easy to set up and use. Choose the storage policy that matches your needs - Fast (RAID 0), Safe (RAID 1), Big (concatenation) or JBOD (independent disks). Windows and Mac compatible, the LaCie Two Big is designed for small-to-medium businesses, digital content creators and savvy home users working with audio/video editing, web servers, databases, and graphic design. It’s ideal for video editors who want to protect big files with RAID security and need the fast speed of SATA II.