... 2 Lan Computer,4*USB 2.0,2*RJ45, 1*VGA,1*LPT,2*RS-232,WIFI Computer, Mini Linux Computer ... back of the Monitor9.With 2*RJ45 LAN Port,1*VGA,1*LPT,2*RS-232,4*USB.ZC-M271 Specification ... *USB 2.0,1*SPK , 1*MIC, 1*PS2,1*VGA with 15 needles,1*LPT with 25 needles,2*RS ... 2 Lan Computer,4*USB 2.0,2*RJ45,1*VGA,1*LPT,2*RS-232,WIFI Computer,Mini Linux Computer ...