The Seagate BlackArmor NAS 400 series 4-bay storage servers are complete, small business network storage solutions designed to provide optimum uptime and data integrity to for up to 50 workstations. Automatically protect business-critical data with incremental and full-system backup software for network connected PCs, bare metal restore (full-system restore) and individual file to entire volume encryption. Enhance data integrity and/or performance with RAID 0/1/5/10 & JBOD configuration options. Access files securely over the internet from any popular web browser - no special software required. Backed by a 3-year limited warranty.