Foil covered keyboard Number of keys: 105 Keyswitch technology: short travel keys Cursor control: 38 mm-trackball, mechanical Operating force: 2,6 N Switch travel: 0,3 mm Switching cycles: approx. 3 mil. Protecting level: IP65 (stat), IP54 (dyn) Housing design: plastic housing Housing material: ABS Interfaces: PS/2 Operating temperature: 0 °C to +70 °C Storage temperature: -25 °C to +80 °C Dimensions: 482.6 x 184.6 x 41.7 mm Weight: 1500 g layout: american