... 51 chip)2.Control Panel:16*4 character LCD display, 10 silica gel buttons, easy-to-use and durable3.Driver: ... faster than 51 chip)Control Panel16*4 character LCD display, 10 silica gel buttons, easy-to-use and durableDriver High ... HP-GL Automatic IdentificationInterfacesUSB/ SD Card / Serial portPower SupplyAC110V /220V±10%, 50Hz/60HzPower< 100W< 120WRed Dot PositioningPositioning using red dot, ...