Monoprice SLIMRUN CAT6 UTP ETHERNET PATCH CABLES are designed for high density environments where space is a premium. SlimRun's ultra-slim 0.149-inch diameter 28AWG cable and narrow boot design reduces congestion and simplifies moves, additions, and changes. SlimRun Cat6 is component tested, which provides a better level of performance over channel-rated patch cables.Monoprice Ethernet cables are made of 100% pure bare copper wire, as opposed to copper clad aluminum (CCA) wire, and are therefore fully compliant with UL Code 444 and National Electrical Code TIA-568-C. 2 fire and safety standards, which require pure bare copper wire in communications cables.