1. Optical multi-touch 2. Touch by finger, normal pen and ... size:30″ ~ 110″ConstructionFrame: aluminum, die-cast zincPCB: FR4 fiberglass printed circuit boards, tempered glass, etc. PC connection5m USB cableTouch technologyOptical imaging (no ... USB connector pinsEMCCE,FCC Class B,EN55022,EN55024,CISPR22,CISPR24InterfaceUSB 1.1 (full speed)Operating systemWinXP, Win7, Win8, Vista, Linux, Mac OSBasic ...