The Adesso Mini Trackball keyboard, combined with an integrated optical trackball, gives users control of their desktop. The integrated optical trackball delivers superior precision and smooth motion with virtually no maintenance or cleaning required. Measuring less than 12in. wide and equipped with an embedded numeric keypad, the keyboard is a great space saver for desktops in homes or offices. It is ideal for use in POS, kiosks, warehouses, manufacturing environments or in any small working area. Adesso AKB-310UB Mini Trackball Keyboard is one of many Wired Keyboards available through Office Depot. Made by Adesso.