... plot sofeware:AI(illustration),CAD,CORELERAW;7.More Interface:USB,SD card,serial Port,blue teeth or ... rubber that thickness is 1mm.Larger Format: 3 Interface for connection:Technical Details: TypeTH740LStandnoneMainboard32-bit CPU,4MB ... torque motor and micro-step driverlocating systemPrecise electronic limited interface system and arbitrary original setting systemMax paper feed width740MMMaximum ...