Product Name: Metal Trackball for KioskModel Number: BT-MT305Place of Origin: ChinaSpecifications: 1) Material: fine and anti-abrasive stainless steel 2) Weatherproof, waterproof and dustproof design, widely applied in self service terminal, medical, military, didactical, industrial and safety fields 3) Interface: USB or PS2, easy to connect and assemble 4) Mechanical features: a) Ball material & diameter: stainless steel, 38mm for standard type, 25mm ball is also available for option b) Actuation force: 65g/1.5mm c) Key lifespan more than 2,000,000 times actuation 5) Environment Adaptability: a) Protection level: IP 65 (static) / IP 54 (dynamic) b) Air pressure: 60-106kpa c) Humidity range: 20-95% d) Temperature range: -25oC ~ + 55oC 6) Reliability: MTBF: > 20,000h, MTTR: 7) Dimensions: a) Front plate: 83 x 110mm or 83 x 100mm. b) Overall: 134 x 107 x 40.7mm 8) Weight: 0.65kg OEM/ODM orders are welcome.