... *VGA,1*LPT,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 Atom N455 or ... /m2 Contrast Ratio 400:1 Touch screenType Resistive Touch screen Controller Interface Internal USB ( RS-232 interface option) Light Transmission ... , 1*LPT, 4*USB, 2*GLAN, 1*Audio 8" HMI with touch screen