1000' spools of CAT6 and CAT6A CMR (Riser) and CMP (Plenum) rated cables available in a variety of colors. Riser rated cabling available in 23 and 24 AWG variations tested up to 250 MHz and 550 MHz respectively. Plenum in 23 AWG only. To the left is a cross section of the cable and jacket construction (click for a larger image).