The Buffalo Drive Station Duo USB (Universal Serial Bus) 3.0 is a high performance, multimedia, external hard drive perfect for the home or small office that requires large amounts of storage space. The unit is a two drive; two bay RAID enabled drive with RAID 0 for performance & RAID 1 for redundant storage. The Drive Station Duo gives additional storage to quickly backup all your multimedia files. With data transfer speeds of up to 10 times faster than USB (Universal Serial Bus) 2.0, compatible with Windows Server 2003/2008 & available with Nova Stor Nova BACKUP Business Essential backup software, the Drive Station Duo 3.0 quickly backs up your entire server system & database.