Connects two HDMI cables together to make a longer cable,twisted-pair wires impedance matching process, minimize signal intersection, ensure error-free transmission. Use PVC insulation, wear resistance, flexibility is strong,the compact size of the coupler allows it to be easily tucked away,does not appear, the use of security. Gold plated connectors for better conductivity, More than 1920 * 1080 resolution support, double link bandwidth,Strong interference shielding completely isolated from the outside world. Change male end of HDMI cable into a female,Scope of application: computer, digital TV, plasma, LCD TVS, projectors and other equipment, the connection between. package include: 2 x HDMI Adapter.