Cat5e Ethernet Cable Spring wire? Adopting spring cable design, it is free to expand and contract, and it is more convenient to use, pure copper core cable, better conductivity, more stable transmission. Features? Spring wire, stretches freely, does not wind Pure copper cable, smooth transmission Wide compatibility Specification? length?4.92ft interface?Cat5e RJ45 Standard: Cat5e, Backward compatible with Cat 5 Ethernet Cable Support bandwidth up to 250Mhz Support speed up to 1000Mbp Package List: 1 X Cat 5e Ethernet Cable Spring wire(length?4.92ft)