The Canare L-4.5CHD-PL-300 is a1000-foot RG-6 3G-SDI plenum rated cable. Based on Canare's riser rated L-4.5CHD, the L-4.5CHD-PL-300 was also designed for installations where plenum rated cable is required. This cable utilizes the same connectors and tooling as our L-4.5CHD, thus eliminating your need for different connectors and tooling at your job site.