Whether you're an IT expert or not, WD Sentinel RX4100 is easy to install and provides secure unified storage, complete data protection, iSCSI SAN and remote file access for your employees and trusted vendors while in the office or from anywhere. Featuring hard drives optimized for reliability, quality and performance, an Intel Atom dual-core processor, and Windows Storage Server 2008 R2 Essentials, from Microsoft, it delivers a reliable, secure and easy-to-manage storage server designed specifically for small business environments.