... Windows7,XP,Vista 20) Size Rate : 80“ 21) Data Port : 10Meter USB cable 22) Accessories(pen&pointer,software,USB ... special pen, easy use and safety.Frame: aluminum, durable (8years)Surface: honeycomb aluminum panel, light, anti-strong hit, anti-glare ... response and discussion between different users in different areas.Support multi whiteboards connect, support writing, drawing, operation, video play, ...