1. The Metal Stainless Steel keyboard is manufactured for all industrial environments with full functionality layout.2. Panel mount from below, this keyboard can be bolted firmly into place with the Grade 304 stainless steel protecting this keyboard in public access areas.3. Rugged and vandal resistant, and integrated mechanical trackball provide full functionality to the user in kiosk applications.Model D-8615Size 431*126mm (front panel)SpecificationNumber of Keys: 65+2 keys Material: stainless steel (front panel) and alumina alloy Key travel:1.5mm key switch lifespan: more than 2 million operations Keyswitch technology: silicone switching. Key graphics: laser engraved legends &characters in durable paint Mounting style: Panel mountSupply Voltage: +5V DC +/-5%Communication interface: USB or PS2 (optional) Protection Level: IP65(front panel) Operating temperature:-40 ~+70 StorageTemperature: -50 ~ +80 CE ,FCC,RoHS  Support:DOS/Windows95/98/NT/ME/2000/2003/XP/Vista/7,8 Linux, Mac,etc MTBF >50000HApplicationThis Keyboard is mainly used for unattended internet terminals and information kiosks in public areas, self-service terminals in the bank, ticket vending machines, gas stations, cash machines (ATMs), Internet public phones, industrial console, Mining Industry Keyboard, public information kiosk, Pump test bench, Fuel dispenser, etc