This is the Rocketfish HDMI Coupler RF-G1172. This coupler allows you to connect 2 HDMI cables for a longer length when setting up your entertainment system. This coupler supports all HDMI1.3 features for compatibility with your home theater setup. Supports 1080p, 120Hz and 10.2 Gbps. Also features 24K Gold Connectors and an fully enclosed metal shell to resist interference for a clear signal.