The smart 72274EU by Kensington is perfect for number crunchers, as its actually a calculator, keypad and USB hub all in one! Featuring a clear LCD display, this 72274EU includes a send function to export your final calculations into spreadsheets on your computer. You can switch between the numeric keypad and calculator modes easily with the touch of a button. Plus, the 72274EU has a clever USB hub with two USB ports built in.