Visit Amazon sites : http://www.amazon.com/gp/product/B0001YH7VA?tag=gallianostore-20<br /><br />Adesso Mini Trackball USB Keyboard (ACK-5010UB)<br /><br />8889 keys keyboard with embedded numeric keypad and 12 dedicated function keys <br />Built-in trackball for mouse emulation <br />Fully function of 104105 keys <br />Windows 7 Vista XP below <br />Resolution 200 DPI
