HTTX HDMI Adapter Female to Female, Gold Plated High Speed HDMI Female Coupler 3D&4K Resolution (4-Pack) 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 Convenient and cost-effective 4-pack HDMI inline couplers provide spare or replacement units for different equipments. Gold plated connectors resist corrosion and provide rigidity. Please update to the latest driver What You Get: 4 x HDMI Adapter Female to Female, our worry-free 18-month warranty and friendly customer service.