8K HDMI Coupler Connect two HDMI Cables for long distance transmision. Support 8K@60Hz / 4K@120Hz, 7680x4320@60Hz, 2K@240Hz, 1080P@240Hz. DT, Dolby sound, and HDR Gold-Plated Contacts ensure stable signal transmission; Fully shielded aluminum shell can avoid signal interference and wear resistance The HDMI Coupler Female to Female Adapter can handle over 10,000 pluggings and unpluggings. This HDMI to HDMI Extender is Suitable for all devices with HDMI Male head, such as TV Box, PC, Laptop, HDTV, Monitor, Projector and so on Package Include: 6 x HDMI Female to Female Adapter. HDMI Coupler