Connects to a laptop or desktop computer using an included cable with USB connector. Full-size concave keys are comfortable and easy to use providing the perfect complement to your laptop. Great for anyone working on spreadsheets, accounting or financial applications. USB port required. True plug-and-play device; no drivers required. Faster Data Input: Low-Profile Key Design Allows for Convenient Data Input Ideal for Spreadsheet, Accounting and Financial Applications Extra Functionality: "000" and "Backspace" Keys for Improved Productivity Plug and Play Connectivity: Easy to Install, Simply Plug Into Your Notebook's USB Slot with No Drivers Required