Cable Matters 2 Pack Gold-Plated High Speed HDMI Coupler (HDMI Female to HDMI Female Coupler) - 3D & 4K Resolution-Ready HDMI COUPLER joins 2 HDMI cables to extend the distance between a computer, media streaming player, or Blu-ray player to a UHD TV, monitor or projector with HDMI input; Leave an HDMI cable and coupler in place for connections in hard to reach areas VIDEO RESOLUTION SUPPORT up to full 4K including 4096x2160, 3840x2160, 2560x1600, 2560x1440, 1920x1200, and 1080p; 4K video requires a 4K equipped source, HDMI cables, and output display HDMI 2.0 COMPATIBLE with with HDMI support for Audio Return Channel (ARC), HDMI Ethernet Channel (HEC), 48 bit color depths, 32 channel audio, Dolby True HD 7.1 audio, and 3D video; HDCP compliant for viewing content protected video COST-EFFECTIVE 2-PACK provides a spare adapter to keep in a notebook sleeve for connecting to a projector when traveling; Compact and lightweight couplers are easy to store when not in use SUPERIOR CONSTRUCTION combines gold-plated connectors with easy grip treads for frequent use and long life; A lifetime warranty is included with these couplers