3COM KEYSTONE JACK(Cat5e,Cat6) UTP, FTP.Exceed all internation standard. Have super long working life(10-25years). 3COM KEYSTONE JACK(Cat5e,Cat6) UTP, FTP1)Meets or exceeds ... "3)Meets EIA/TIA 568 Cat6 Specification4)Exclusive stagger conductors guide design reduces near end cross talk5)for standard UTP,FTP,and SFTP cable