1. HMI 2. 8~19" LCD 3. D525/N455,2G DDR3,250G ... ,4*USB,2*GLAN,1*Audio,Wifi HMI, Human machine interface, IEC-608NF is a industrial touch screen HMI with 8.4" LCD and Intel ... 400:1 Touch screenType Resistive Touch screen Controller Interface Internal USB ( RS-232 interface option) Light Transmission 81% or more Operating Force ... *VGA, 1*LPT, 4*USB, 2*GLAN, 1*Audio 8" HMI with touch screen