Ultra-fast transfer rates When connected to a USB 3.0 port, My Passport Slim lets you access and save files in blazing speed. Reduce transfer time by up to three times when compared to USB 2.0 transfer rates. Performance may vary based on user's hardware and system configuration. Automatic backup software WD SmartWare™ Pro automatic backup software works quietly in the background to help protect your data using minimal PC resources. Select automatic, continuous backup to instantly back up your files. Or select the scheduled backup option to back up your files on your schedule and take control of your backup. Local and cloud backup WD SmartWare Pro automatic backup software lets you chose when and where you back up your files. Choose scheduled backup to back up files on the schedule that works best for you. Choose file or folder backup if that is your preference. Use your Dropbox account to back up your files to the cloud. Works great with Windows® 8 The WD Windows 8 app makes it easy to discover the digital media stored on your My Passport Slim drive with your Windows 8 computer. Your content is automatically displayed and organized so you can easily locate and enjoy your photos, videos and music. Dropbox account required for cloud backup. Cloud services may be changed, terminated or interrupted at any time and may vary by country. USB 3.0 and USB 2.0 compatibility With this single drive you get compatibility with the latest USB 3.0 devices and backward compatibility with USB 2.0 devices as well. WD Drive Utilities™ Register your drive, set drive timer, run diagnostics and more using WD Drive Utilities. USB-powered Powered directly from the USB port on your PC. No separate power supply is needed. Durable enclosure protects the drive inside We know your data is important to you. So we build the drive inside to our demanding requirements for durability, shock tolerance, and long-term reliability. Then, we protect the drive with a durable enclosure designed for beauty and a 3-year limited warranty for your peace of mind.