Specification Resolution: 3276832768 Aspectratio:4:3 product size:17501390100mm Active size: 15801(w)12061(dmm Shippingsize:1770*1400*100mm n.W: 25kg ; g.W: 30kg MaterialAluminum alloy+zinc alloy Product colorBlack Resolution3276832768 GlassNo Response speed10ms Touch accuracy2mm in 90% of the active area InputFinger, stylus, non-transparent objects Aspect ratio4:3 Minimum touch target size8mm Port typeUsb CertificationCe, rohs, fc Scanning frequency125hz Power sourceUsb Operating voltageDc+5v10% Operating current©‚450ma Operating temperature-20~65 Storage temperature-40~80 Operating humidity0%~ 85% rh Storage humidity0%~ 95% rh CertificationCe, fc, rohs Warranty2 years Shipping size: 1770*1400*100mm