Providing a massive amount of storage capacity in a compact 2-disk device, the LaCie Two Big eSATA & USB comes with the fastest interface - eSATA (SATA II 3Gbits) and Hi-Speed USB 2.0 for connecting to almost any computer. 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, it s designed for anyone working with audio/video editing, web servers, databases, graphic design and more. It s ideal for video editors who want to protect big files with RAID security and need the fast speed of SATA II.