Powered by Intel 1.6 GHz CPU, 1GB DDRII memory, the TS-639 Pro delivers superior performance for multiple business applications. Advanced RAID configurations, including RAID 0/ 1/ 5/ 6/ 5+Spare, JBOD, online RAID capacity expansion, and online RAID level migration are all supported.

The TS-639 Pro can serve as a NAS and an iSCSI target server. The built-in iSCSI target feature provides an affordable IP-SAN (Storage Area Network) alternative for SMB. The server managers can set up the NAS to expand the storage capacity for existing application servers, such as database server and mail server in an economic way. Moreover, the innovative "Virtual Space Allocation" (Thin Provisioning) feature is provided which allows the server managers to flexibly allocate the capacity of iSCSI LUN (Logical Unit Number) at the beginning regardless of the physical volume capacity.

The TS-639 Pro supports file sharing across Linux, UNIX, Mac, and Windows platforms. Different applications are supported, e.g. file server, FTP server, printer server, web server, and encrypted remote replication by Rsync. Also, windows AD (Active Directory) is supported to help create an easy-to-access environment and lower the maintenance cost. SSH login and web page SSL login enable users to transfer, store, and share data securely. Expensive though, expect roughly 1000 USD.