DESCRIPTION: 304 Stainless steel trackball for internet kiosks, self-service terminals MAIN FEATURE Faceplate Dimensions: 110mmx83mm Dustproof, Water proof, Vandalism resistance, Shakeproof, Pickproof Key travel: 2.00mm. keyswitch lifetime: > 5 million of operations. Actuation Force: 1N G.W. 0.75kg TECHNICAL DATA · Lifespan :> 5 years. · Interface: PS2, USB available. · Supply Voltage: +5V DC +/-5% · Protection Level: IP65; NEMA4X · Operating temperature:-10C to +60C. · Storage temperature: -20C to +70C. · CERT: RoHS, CE and FCC.