Monster Digital Word Clock Cables - 2 Meters - BNC High-purity, silver-plated conductor enables precise transmission of critical timing data. High-tolerance PTFE dielectric maintains 75-ohm impedance for maximum performance. 24k gold contact, 75-ohm BNC connector provides maximum surface area and a tight fit for the best possible signal transfer. Copper foil shield and silver-plated copper braid reject RFI and EMI.