Our Cat5e Plenum Solid Conductors is fire safety rated cable which contain a flame-Retardant Plenum jacket produce less smoke than traditional Plenum jackets. High-Performance Data Communications Cable Cat5 PlenumCMP Rated Cable Fluke tested up to 270 Ft, 350 MHZ Low Smoke Plenum Rated Jacket Flame-Retardant Plenum-Rated jacket Designed for IndoorPlenum Rate...