Men's Wenger&reg; Swiss Military Stainless Steel Traveler Watch Kit Contents - Ultra-portable hard drive, WD SmartWare software, USB cable, Quick Install Guide WD's smallest portable drive ever - WD is an expert in portable storage, so they designed a smaller, high-quality integrated USB hard drive inside this stylish package. Perfect for Mac users on the go. Designed for Mac - Formatted for Mac and compatible with Apple Time Machine, this drive is plug-and-play ready for Mac computer users. WD SmartWare - A control center for your drive that gives you the power to - Protect your data automatically - Relax, your data is secure. Automatic, continuous backup will instantly make a second copy whenever you add or change a file. See your backup as it happens - Seeing is believing. Visual backup displays your content categories and shows the progress of your backup.