Massive 4TB Capacity: Store approximately 700,000 photos or 850,000 songs in one place, backed by legendary WD reliability .

Complete Backup Made Easy: Includes WD Backup software for scheduled automatic backups on Windows, plus compatibility with Apple Time Machine for Mac .

Password Protection & Security: Built-in 256-bit AES hardware encryption with WD Security lets you set a personalized password to keep your content private and safe .

SuperSpeed USB 3.0: Enjoy fast data transfer speeds up to 5 Gbps for quick file saving and access .