Standard: INTERNATIONAL ISO/IEC 11801 USA ANSI/TIA/EIA-568B.2 Product Characteristics: Structure:0.511mm solikd bare copper(24AWG copper), PE insulation,4PAIRS FR/PVC or LSOH jacket Frequency: 155MHZ Confirm to UL require Transmission Velocity:200Mbps Package:305 meter/box Application:10Base T,ATM,Ethernet, Token ring, TP-PMD Audio,Telephone And Multi-media networks,etc.