Category 5e cable is a twisted pair high signal integrity cable type often referred to as cat5e most cables are unshielded relying on the twisted pair design for noise rejection some are shielded often used in computer networks such as ethernet 3 metres yellow utp unshielded twisted pair cat5e moulded verified for gigabit ethernet 24awg x 4p type cm ul cmh e164469 f3 isoiec 11801 amp en 50288 amp tiaeia 568 b2 3p