UTP

Unshielded twisted pair) (UTP) cabling is the most common cable used in computer networking. It is a variant of twisted pair cabling. UTP is the most commonly used type of networking cable. UTP cables are often called "ethernet cables" after Ethernet, the most common data networking standard that utilizes UTP cables, although not the most reliable. In contrast to FTP and STP cabling, UTP cable is not surrounded by any shielding. It is the primary wire type for telephone usage and is very common for computer networking, especially in patch cables or temporary network connections due to the high flexibility of the cables

UTP is the acronym for Unshielded Twisted Pair. Twisting wires decreases interference because the loop area between the wires (which determines the magnetic coupling into the signal) is reduced as much as physically possible. Often the two wires carry equal and opposite signals which are combined by subtraction at the destination. The noise from the two wires cancel each other in this subtraction because the two wires have been exposed to similar electromagnetic interference. This is the standard cable used for ethernet and data transfer.