Extralink Patchcord LAN network cable - length 3 meters. Network cable Extralink is a 3 meter long Patchcord LAN copper cable for indoor use. LAN Patchcord is a basic element of computer networks operating in the Ethernet standard. It is used to directly connect two active devices, such as a router or switch, so that data can be transferred between them. It is also used to connect computers or Voip telephones for structured cabling and to perform patch panel switching in IT cabinets. It is perfect for both large and small computer networks. Shielded patchcord Extralink is highly flexible, which translates into installation convenience and user comfort.