Drive Station™ Duo is a 2-drive, USB (Universal Serial Bus) 3.0, high capacity, redundant storage & backup solution for PC & Mac computers. Configure for full capacity or mirror the hard drives for redundant data protection. 2-Drive USB (Universal Serial Bus) 3.0 Storage with RAID Redundancy Drive Station™ Duo is an easy to use 2-drive USB (Universal Serial Bus) 3.0 storage solution for PC & Mac computers. Instantly expand storage or schedule automatic back-ups with USB (Universal Serial Bus) 3.0/2.0 plug & play connectivity. Easy to Use Storage With terabytes of storage, Drive Station Duo provides reliable, easy to use storage for your PC or Mac computer. Quickly expand the capacity of your computer for your favorite music, photos, videos & more. The simple USB (Universal Serial Bus) 3.0/2.0 interface offers plug & play setup & universal connectivity. Easy Scheduled Backup Drive Station Duo is perfect for backing up your important files. Disaster & hard drive failures can occur unexpectedly; don't leave your important files & treasured memories in the hands of chance. Schedule regular backups for your PC with Buffalo Backup Utility or use Time Machine for your Mac. Protect all of your data, down to the last byte. Flexible Storage & Automatic Data Protection Drive Station Duo provides users the flexibility to easily maximize capacity or protect their data using RAID redundancy. RAID 0 combines both drives into a single array offering maximum storage capacity with no redundancy. RAID 1 offers maximum redundancy by mirroring both drives. Data is automatically duplicated, so that if one drive fails, the data is kept safe on the other. Buffalo recommends RAID 1 for all devices using two hard drives.