Toshiba Automatic Backup Portable Hard Drive, 1TB offers a smart, hassle-free backup solution for your family. Powered by NTI Pocket Data Backup, this Toshiba 1TB Portable Hard Drive lets you store, share and protect your photos, music, movies and files effortlessly. With 1TB of space, the Toshiba Portable Hard Drive allows you to hold up to 285,000 photos, 263,000 songs and 820 movies. The Toshiba 1TB Portable Hard Drive is compatible with Windows-based PC only. Backup starts automatically after you initially set up your Toshiba Automatic Backup Portable Hard Drive, 1TB. It's that easy!