Conwork (4 Pack) Gold-Plated High Speed HDMI Female Coupler 3D & 4K Resolution-Ready The female to female HDMI couplers extend the distance of your existing HDMI cable Fully compliant with the latest HDMI standard, these HDMI cable couplers are capable of carrying the increased bandwidth of HDMI 2.0 at 18 Gbps Support Audio Return Channel (ARC), HDMI Ethernet Channel (HEC), 48 Bit Deep Color, 32 channel audio, HDCP, Dolby True HD 7.1 audio, and 3D video Support resolutions up to 4Kx2K (UHD) including 4096x2160, 3840x2160, 2560x1600, 2560x1440, 1920x1200, and 1080p Package Contents: 4x HDMI Female to HDMI Female Connector. Limited lifetime Warranty and Product Support.