The "XS Trackball Keyboard" (G84-5400) combines comfortable mouse control with compact dimensions. Via the optical trackball with two mouse keys. the cursor can be controlled easily and precisely.- Optical trackball with two mouse buttons for easy control of the cursor - High degree of reliability and precise keystroke feel thanks to individual keys with Gold Crosspoint contacts (Cherry ML technology) - Ideal for continuous usage due to the long operating life in excess of 20 million key confirmations per individual key - Compact dimensions and very low overall build height. ideal for restricted spaces and for 19" applications - Standardised measurements and installation dimensions of the complete XS product family - the keyboard can be adapted to every application - Lightweight - for applications where every gram counts - Plug & Play - can be used with the operating system's standard drivers - Supports Code Set 3 and UnifiedPOS - Fastening option for permanent installation - Detachable pluggable feet for individually adjusting the tilt of the keyboard - Freely programmable keys for even more time-saving operation