108 keys IP65 dynamic rated membrane industrial keyboard with full keyboard functionalities with integrated numeric keypad and function keys on the upper line, IP68 dynamic rated washable 38.0mm optical trackball module with 800 DPI resolutions for fast and accurate cursor position, 2.0mm thickness industrial metal dome PCB with gold-on-gold metal dome key switch technology with short stroke 0.45mm with extremely good tactile feeling for reliable data input, with FN + CLEAN combination key for easy cleaning via lock/disable the entire keyboard without needing to take the keyboard from PC, surface mounted extremely flush with anti-microbial functionalities, the fonts printed on the film underneath will never fade, durable and scratch-proof polyester withstand to most chemicals and liquids under the harshest environments, ruggedized and backed with 2.0mm Aluminium plate with sand blasting & oxygenation treatment, top panel mounted.