Buffalo TeraStation 3400 4-Drive 4 TB Desktop NAS for Small Business (TS3400D0404) High performance dual-core 1.33 GHz ARM processor Business-class features Simultaneous NAS and iSCSI target functionality Buffalo Surveillance Video Manager (support for up to 5 cameras) Real Time Replication Server Failover Hot swap/Hot spare 10 licenses of NovaBACKUP Business Essentials v14