Adesso AKB-310UB Mini Trackball Keyboard

USB - 87 Keys - Black

• Builtin Optical Trackball - The integrated trackball eliminates the need for a mouse and saves valuable desk space, with its 800 DPI resolution the optical trackball provides superior accuracy and smooth motion requiring minimal hand movement and no maintenance.
• Compact Size - This keyboard is 11.75" wide and is designed with a Windows layout that includes an embedded numeric keypad. This keyboard is a great space saver for all environments and ideal for public workstation
• Quiet Membrane Keys Switch - The membrane keys offer you fast typing and a lifecycle of more than five million keystrokes.