The USRobotics Serial ATA 4-Drive Network Attached Storage (NAS) appliance brings sophisticated, cost-effective and safe storage to small businesses, corporate work-groups and advanced households. Four drive bays allow customers to add up to two Terabytes (2,000 Gigabytes) of storage. It includes powerful RAID hardware and software, the industry standard for safe storage across multiple drives, and simple to understand and use wizards. With integrated Gigabit networking and print server capability, it delivers excellent performance, value, functionality and peace of mind while easily expanding shared storage.