... ) RGBConnectorVGA for video signalUSB for touchFrequency30~80KHz/60~75HzPower supplyExternal Power Supply:100 to 240V (DC 12V)Operation EnvironmentWorkable Temperature:-10 ... -mounting, VESA 75mm &100mm2) base to support the monitorOSD controlAUTO,+,POWER,-,MENUbrightness,contrast ratio,auto adjustment,phase position,clock,Languages,function ...