... 1,LED Backlight vandalproof metal keyboard with touchpad 2,Waterproof ,dust proof,IP65 ... , meet IP65 requirement 8) PS/2 or USB interface9) Customizable layout upon customer’s requirements SpecificationsMaterial ... - Interface: USB or PS2 - EMC compliant. Emission: EN 50081-1 Immunity: EN 50082-1- Touchpad resolution:1000 ... - PS2: Win NT4, 98SE, 98ME, 2000, XP - USB: Win 98SE, 98ME, 2000, XP, Mac OS9 / OSX ...