The Black Armor NAS 220 server is a small-business-specific network attached storage solution designed to provide centralized storage & data backup, helping to deliver business continuity for up to 20 PCs. Automatically backup business-critical data with RAID 1 mirroring, full-system backup, Safety Drill+ bare metal recovery software & powerful hardware-based encryption. Please note: networking components such as switches, routers, NAS & wireless devices require that speeds & standards be consistent throughout the network to gain optimum performance. To avoid compatibility clashes or for advice, please contact us on solutions@ebuyer.com.