Equipped with USB-C technology, the My Passport Ultra portable drive offers an easy way to expand your storage with a modern metal design that complements your PC. It’s Windows 10-ready out of the box to seamlessly deliver plug-and-play storage, while password protection with hardware encryption helps enforce the security of your content.FeaturesUSB-C and USB 3.1 compatible - Innovative style with refined metal cover - WD Discovery allows you to choose an auto backup plan, password protect your drive and import from social media and cloud storage - Control your backup plan either hourly, daily or monthly - Password protection with 256-bit AES hardware encryption - OSReformatting required to use Time Machine on mac - OS. Compatibility may vary depending on user’s hardware configuration and operating system. - In The Box - My Passport Ultra Portable Storage - USB-C cable with USB 3.1 adapter - WD Discovery software for WD Backup , and WD Drive Utilities Quick install guide - Dimensions:1TB – 2TB DIMENSIONS: Length: 110mm (4.33 in) Width: 81.6mm (3.21 in) Height: 12.8mm (0.50 in) Weight: 130g (0.29 lb) 4TB – 5TB DIMENSIONS: Length: 110mm (4.33 in) Width: 81.6mm (3.21 in) Height: 20.96mm (0.83 in) Weight: 230g (0.51lb)