Rocketfish&trade; - 8' In-Wall HDMI Cable Up to 18 Gbps bandwidth: To ensure optimal performance. 3-layer cable shielding: Along with a 360 metal connector shell allows the cable to resist EMI and RFI interference. Silver content soldering: Maintains the integrity of the signal between the cable and connector. 24K gold-plated contacts: Resist corrosion and promote efficient signal transfer. In-wall rated: For flexible installation options.