The d2 Network 2 from LaCie is a NAS that can be used for complete backups of your computers, media servers, and more. The NAS sports 1TB of storage space, and has a USB port and an eSATA port for added expandability. The spacious hard drive allows the NAS to function as a server for iTunes or as a Time Machine backup system. It is managed through an intuitive user interface, making the 2big Network 2 a perfect NAS for your needs.