Maxtor Central Axis Business Edition 2 TB (2 x 1 TB) Desktop Network Attached Storage Server STM320005CDA00G-RK Automatic data backup for up to 20 PC and Macs, automatic data mirroring with 2 internal drives User configurableup to 2TB total available storage or 1TB of data mirrored, off-site data rotation enabled with USB port for additional external drive secure web access from anywhere with permissions and controls, easy web accessno client software required Invite select clients to view, download or upload securely, view and share photos and slideshows over the web Requires;wired or wireless router with an available 10/100/1000 Ethernet port, Internet connection (for system updates and Web access), UPnP AV 1.0 certified Digital Media Adapter (if media streaming is desired)