KEYBOARDS & POINTING DEVICES FOR THE MOST DEMANDING JOBS The R55 is a professional desktop trackball. This trackball is designed for comfort over prolonged periods of use. Constructed from high impact plastic and featuring robust mechanics, it is ideally suited for use where reliability and an extensive live span are prerequisites The unit is directly connectable to any PC USB mouse port or to a PS/2 port via the supplied USB to PS/2 adaptor. No special device driver is required. MECHANICAL SPECIFICATIONS Enclosure material Enclosure colour Ball material Ball diameter Dimensions Weight Tracking force Resolution Lifetime - Ball revolutions Lifetime - Switches Standard output connector Converter Storage temperature Operating temperature Relative humidity Vibration ORDER INFO Desktop trackball Pearl White Phenolic Resin, black colour 57,2 mm., 21/4" 200 pulses per ball revolution >= 6 million >= 5 million actuations / switch 2-meter screened lead to USB type A The R55-163330 is directly connectable to a USB or a PS/2 mouse port (via USB to PS/2 adaptor). No special device driver is required. * Due to the increasing differences of the mouse port specifications of the various PC manufacturers, we do recommend that this unit should be tested on the final PC configuration and operating system prior to installing it in series. NSI bv • Kapittelstraat 18 • 3740 Bilzen • Belgium • +32 89 51 90 00 • [email protected] • www.nsi-be.com • ISO 9001

KEYBOARDS & POINTING DEVICES FOR THE MOST DEMANDING JOBS DIMENSIONAL DRAWING The company reserves the right to alter without prior knowledge the specification or design of any standard product or service. NSI bv • Kapittelstraat 18 • 3740 Bilzen • Belgium • +32 89 51 90 00 • [email protected] • www.nsi-be.com • IS