Features mechanical keyswitches are rated at 20 million actuations to withstand harsh environments and ensure long product lifetime size reduced qwerty key layout in ultraslim 11rdquo form factor combines maximal space efficiency with comfortable alphanumeric data entry fn keyrdquo for easy access of integrated numeric area ensures complete function support as with full size keyboards available with ps2 and usb interface optional ldquonon windowsrdquo key layout dual ps2usb interface