This is 5M CAT5 Pure Copper Network Cable with Crystle Head.It is a 5 meters long twisted pair.It applies to 10/100 BASE-TX Ethernet.The data transmission rate is 10/100Mbps.It is used for Fast network access, interconnection of 100M network equipment, such as Fast switch with Fast switch, Fast Ethernet PC and Fast switch of the Internet, PC to PC, PC to ADSL (modem), PC to HUB (hub), PC to Fibercom (fiber) and can also be connected to the notebook card.It is suitable for the connections between computer and switches or hubs, ADSL, routers, modem and hub, router.