Features: 1) Application: used for 10 Base T, 100 Base T, ATM, Ethernet, token ring, TP-PMD speech, telephone, multimedia 2) Structure: the bare copper wire is insulated with 0.511mm (24AWG-American gauge) PE 3) 4 pairs, 2 string per pair 4) PVC fire retardant sheath 5) Features: a) Frequency: up to 100MHz b) Transfer: more than 155Mbps