D-Link DNS-320 ShareCenter 2-Bay Network Storage Enclosure The cost-effective way to store and share your documents, music, videos, and photos with anyone on your network Ideal backup solution for households with more than 1 computer. Included backup software allows users to protect important files by scheduling automatic backups on set timeline Share a USB printer over the network between all the computers in your house Built-in Web File server and FTP server to access digital files remotely over the Internet 2-bay enclosure ideal for DIY customers wanting to use/source their own disk drive(s) - No need to physically connect a USB drive to each computer to perform scheduled backups Insert up to two 3.5" SATA disk drives without any tools or attaching any cables . Support for RAID 1 (mirroring) to protect against data loss in the event of a disk drive failure Supports up to 4TB storage capacity using 2TB disk drives