Western Digital's My Book World Edition home network storage system offers a surprisingly simple way to store and protect all your family's important digital content and files. Create an automatic continuous back up of all the Windows and Mac computers in your home - backup software included for up to 5 computers. Store all your digital media in one central location so everyone can access and securely share your collection from anywhere in the home. Access your files anywhere, anytime using MioNet remote access technology from Western Digital. My Book World Edition drives combine up to 4 TB of networked storage, a built-in media server, and remote access software to make it the most versatile and powerful product in its class.