Buffalo's DriveStation Quad USB 3.0 Hard Drive Array is a 4-drive, RAID enabled USB 3.0 storage solution for small servers, creative professionals, offices and consumers who need large, redundant and high performance external storage. Support for hardware RAID 0, RAID 5 and RAID 10 provides flexible redundancy, capacity and performance operations. With USB 3.0 support and backward compatibility with USB 2.0, DriveStation Quad USB 3.0 works with almost any PC or Mac computer and provides interface speeds up to 5 Gbps. Equipped with NovaBACKUP Business Essentials software, DriveStation Quad USB 3.0 can back up any PC including Windows Servers and Exchange and SQL datastores. DriveStation Quad USB 3.0 features the capacity, redundancy and performance required for demanding professional and server applications. Buffalo DriveStation Quad HD-QLU3R5 DAS Array - 4 x HDD Installed - 12TB Installed HDD Capacity is one of many NAS (Networked Attached Storage) available through Office Depot. Made by Buffalo.