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. | Limited warranty does not cover products purchased from 3rd party sellers | 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