This plenum-rated cable is our highest performing coaxial cable with high-efficiency signal transfer and low attenuation. Designed specifically for use in plenum spaces in commercial and industrial buildings as part of a Distributed Antenna System (DAS), it's a 1/2" thick, easy to run in open spaces, and ideal for long distances. It can be safely used throughout a building. This fire-resistant cable with aluminum tubing and dielectric interior meets all ETL/CMP (UL444) requirements. Each 500-foot length of white plenum cable comes on a wooden spool with unterminated ends. N-male connectors (990074) and cable tools (992206 & 992207) are sold separately.