The Snap Server 4500 is a scalable, rack-optimized 1U storage server that provides industry-leading performance with a best-in-class feature set. Our unique Instant Capacity Expansion (I.C.E.) feature for on-demand scalability and provisioning allows up to two Snap Disk 10 expansion arrays to connect and immediately increase storage space on the fly, with no RAID reconfiguration required. iSCSI target support provides both block and file storage in the same device. Combine all of this with centralized remote administration, no client license fees, and minimal ongoing administration, and it's easy to see how Snap Servers deliver cost-effective capacity without complexity.PRODUCT FEATURES:Industry-leading performance and capacity for departmental storage in your enterprise, no other 1U storage server matches its performance, capacity and feature set. Cross-platform connectivity (Windows/UNIX/Macintosh);Hot-Swappable Drives;Dual Gigabit Ethernet;Integrated anti-virus software;Free client backup software.