The Targus PAUK10U Ultra Mini USB Keypad is designed for mobile users who need a reliable and efficient numeric keypad. This two-in-one device not only functions as a standard numeric keypad but also features two USB 1.1 ports, allowing you to connect additional accessories. With its low-profile keys, the keypad ensures comfort and ease of use, making it an ideal companion for anyone working on spreadsheets, accounting, or financial applications. The plug-and-play design means no special software or drivers are required, making it compatible with various Windows operating systems including Windows 2000, Me, XP, Vista, 7, and 8. The compact dimensions (0.65" height, 3.55" width) and lightweight design (5.44 ounces) make it easy to carry and use anywhere. Plus, it comes with a limited one-year warranty for peace of mind.