Model NO.: K-TEK-M275TP-FN-BL-ML DESCRIPTION: 89 keys IP65 dynamic sealed & durable embedded military silicone rubber keyboard with sealed and ruggedized tough touchpad for fast and accurate cursor position, with built-in military grade PCB module, 12 function keys on top line for easy operation, with carbon-on-gold key switch technology with key stroke (1.50±0.10mm) with extremely good tactile feeling for fast and accurate data input without any noise, with durable coating & anti-microbial keyboard surface withstand to most chemicals and liquids under harsh environment, FN + Clean combination key for easy cleaning via lock/disable whole keyboard without needing to take away the keyboard from PC, top panel mount solution, with exposed copper treatment surrounding the edges of backside PCB and designed without silicone rubber around the PCB edges for optimizing the sealing with cabinet and preventing electromagnetic leakage from the device, adjustable white backlight included. Designed to meet MIL-STD-461G (EMC, EMI, EMS, ESD) and MIL-STD-810H (high and low wide working temperature, low pressure, humidity, vibration, shock, salt spray, temperature shock, drop, rain, sand and dust, fungus, solar radiation etc.), as well as the critical military standards in these 10 aspects: reliability, safety, maintainability, testability, supportability, environmental adaptability, stability, compatibility, consistency, and continuity. DIMENSION: 283.00mm x 177.7mm (L x W)