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 slime-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     Can be used with the standard drivers of the operating system     84 keyboard layout with all the functions of a standard keyboard     Ideal for limited space and 19 inch applications Keyboard Number of Keys  84 Keyboard Technology  ML technology Keyboard & Pointing Device  Trackball Cable length  175 m InterfacesPorts Interface  1 x USB Compliance Certifications  Approvals c-tick • UL • VCCI • CE • FCC • VDE • BSMI Environmental Environmental  Operating Temperature 0 to 50 °C - Humidity Physical Form Factor  Keyboard Colour  Light Grey In The Box  1 x Compact-Keyboard G84-4400 • Operating instructions in hard copy Dimensions  400 cm (W) x 195 cm (D) x 32 cm (H) - Weight 0563 kg