... 5.2* LAN,WIFI ZC-M271 With 2 Lan Computer,4*USB 2.0,2*RJ45, 1*VGA,1*LPT,2*RS-232,WIFI Computer, ... , 800x600, 1024x768,1280x1024,1920*1080.....I/O Port4*USB 2.0,1*SPK , 1*MIC, 1*PS2,1*VGA ... WIFI Chip (Optional need additional $10USD)BracketTo Mounted on the back of Monitor ZC-M271 With 2 Lan Computer,4*USB 2.0,2 ... *RJ45,1*VGA,1*LPT,2*RS-232,WIFI Computer,Mini Linux ...