Need a pointing device? But space restrictions prevent you from using an extra mouse? The ultra-flat compact keyboard with built-in trackball is the perfect solution. The keyboard is optimally suited for 19-inch applications slim-line PCs and laptops.- Individual keys with Gold Crosspoint contacts (ML technology)- Designed for continuous usage - over 20 mill. confirmations per key- High level of reliability and unique precision confirmation feeling- Integrated trackball plus 2 mouse keys- Extremely flat - total height just 20 mm- Lightweight