USB-C Ready, USB 3.0 Compatible :Featuring the latest in USB-C technology, the My Passport Ultra for Mac portable drive delivers quick and easy storage for your Mac, while the included USB 3.0 adapter makes sure it's compatible with older machines. Innovative Style and Function :Fusing modern anodized metal and textures, the My Passport Ultra for Mac portable drive matches your personal style and the latest Mac computers. Do More with WD Discovery :Included WD Discovery software connects to popular social media and cloud storage services, like Facebook, Dropbox and Google Drive.** Import your photos, videos and documents to the My Passport Ultra for Mac drive to help preserve your online life. If you work across both Mac and PC, we provide a downloadable HFS+ driver for Windows to enable you to read and write to your My Passport Ultra drive without the need for reformatting. WD Discovery software can also be used to manage your drive with WD Drive Utilities. Password Protection with 256-bit AES Hardware Encryption :Help keep your private files private with a password of your choosing with WD Security tools to enable the 256-bit AES Hardware Encryption chip on the My Passport Ultra for Mac drive. High Capacity :With up to 4TB of capacity, you have plenty of room to keep your photos, videos, music and documents with you, wherever you go and in your control. Mac-ready :Formatted for Time Machine and ready to deliver plug-and-play storage out of the box, you can back up your photos, videos or business documents with one click. With WD Discovery software, you can also download the HFS driver for Windows 10, 8.1 or 7 machines, so you can work seamlessly between operating systems without reformatting. 3-Year Limited Warranty: The My Passport Ultra for Mac drive is built using tried and true components for lasting endurance and comes with a 3-year limited warranty to deliver premium storage you can rely on.