Cat5e cable is composed of 4 pairs of soild copper cable, with the transmission frequency above 155mhz. Cat5e cable is divided into UTP cable, FTP cable and SFTP cable. All of them are usually used for horizontal wiring of various data and signals, UTP cable especially for outdoor and harsh condition, while but The FTP cable and SFTP cable especially for the environment with complex electromagnetic or with special telecommunication requirements.