Ban noi dung do, thong thuong ban se bam 13 26 31 62 khi dung cap truc tiep qua Net card , Tuy nhien toi cung co mot nguoi ban lam hang 3Com co khuyen cao neu Net Card cua ban co ho tro 10/100Mbs va ban muon nang hieu nang cua card su dung tot voi 100Mbs thi dung cach bam 13 26 32 16 .