UniFi Cable Category 6 Indoor Ethernet Cable for your high-speed UniFi and general indoor network deployments U-Cable-C6-CMR is a Category 6 UTP (Unshielded Twisted Pair) cabling that supports speeds of 1Gbps. It uses 23 AWG solid copper conductor pairs and an anti-crosstalk divider, which improves pair isolation. CMR (Communications Multipurpose cable, Riser) cabling is flame-retardant and can be run vertically between floors in non-plenum areas. UniFi Cable is CMR fire-rated (also called riser-rated), making it suitable for in-wall and riser cabling applications. We recommend using Category 6 Ethernet connectors to optimize performance and accommodate the size of the 23 AWG conductors.