Designed for storage plus server capabilities, the WD Sentinel DS5100 is ideal for small businesses that are looking for an ultra-compact unified storage solution with an integrated iSCSI SAN, NAS and server-based backup technology. Featuring hard drives optimized for reliability, quality and performance, an Intel XeonTM dual core processor and Microsoft Windows Server 2012 R2 Essentials operating system, it provides secure access to data and line of business applications, even when working remotely.