Patch cables are often used for short distances in offices and wiring closets. Ethernet patch cable can link a computer to a network hub, router or Ethernet switch, which is useful for constructing home computer networks.
Category 5 cable (Cat 5) is a twisted pair cable for computer networks. Since 2001, the variant commonly in use is the Category 5e specification (Cat 5e). The cable standard provides performance of up to 100 MHz and is suitable for most varieties of Ethernet over twisted pair up to 1000BASE-T (Gigabit Ethernet). Cat 5 is also used to carry other signals such as telephony and video.