Perixx PERIBOARD-518 Wired Trackball Keyboard with 2 USB Hubs, X Type Scissor Keys, Build-in 0.75 Inch Trackball with Pointing and Scrolling Function, Black, US English Layout (11220)
The keyboard can be used on the professional or industrial application. With its build-in 19mm laser trackball, you can use the keyboard together with the pointing feature.
