Size: 43''1842*609.6*55mm 49''1842*701.5*55mm 55''1930*766.4*55mm 65''2050*885.5*55mm Description: 1.Touch screenwith 10 points touch 2.Screen: LED, erection column 400*400, 43'' LG brand without erection column 3.PC mainboard: industrial controlling mainboard 4.Screen power supply: Megmeet 118 power supply(43'', 55''),Megmeet 128 power supply (55'',65'') 5.Power supply for mainboard: Saiqi 12V4A single supply 6.Hard disk: Notebook hard drive or solid state drive 7.Speaker: yinhua electronic 8 Ω, 5W plastic speaker 8.Eterner port: three-core socket ,Rocker switch,network adaptor, 2 USB ports, Start and reset switches,Wifi