CTS Version: 2.1/2.1a/2.0b/2.0a/2.0/1.4/1.3/1.2/1.1

1. The CTS 2.1 Version Specification includes a new cable - the Ultra High Speed HDMI Cable. It’s the only cable that complies with stringent specifications designed to ensure support for all CTS 2.1 Version features including uncompressed 8k@60 and 4K@120. The cable’s increased bandwidth capability supports up to 48Gbps.
2. The Ultra High Speed HDMI Certification Program is a mandatory certification program for all Ultra High Speed HDMI Cables; and ensures quality Ultra High Speed HDMI Cables reach the market and support 4K and 8K video, HDR, VRR, eARC, and all other CTS 2.1 Version features. Cables are also required to be tested and certified to ensure low EMI to reduce the possibility of interference with wireless networks, streaming media players, Bluetooth devices and mobile phones.
3. All certified cables of any length must pass certification testing at an HDMI Forum Authorized Testing Center (Forum ATC). Once certified, cables will be required to affix an Ultra High Speed HDMI Certification Label to each package or unit of sale enabling consumers to verify the certification status of the product.

The HDMI cable must have a UHS label on the package to be the real CTS 2.1 cable.

• Higher video resolutions support a range of high resolutions and faster refresh rates including 8K60Hz and 4K120Hz for immersive viewing and smooth fast-action detail. Resolutions up to 10K are also supported for commercial AV, and industrial and specialty usages.
• Dynamic HDR support ensures every moment of a video is displayed at its ideal values for depth, detail, brightness, contrast and wider color gamuts—on a scene-by-scene or even a frame-by-frame basis.
• The Ultra High Speed HDMI Cable supports the 48G bandwidth for uncompressed CTS 2.1 Version feature support. The cable also features very low EMI emission and is backwards compatible with earlier versions of the HDMI Specification and can be used with existing HDMI devices.
• eARC simplifies connectivity, provides greater ease of use, and supports the most advanced audio formats and highest audio quality. It ensures full compatibility between audio devices and upcoming CTS 2.1 Version products.

Enhanced gaming features ensure an added level of smooth and seamless motion and transitions for gaming, movies and video.

They include:

• Variable Refresh Rate (VRR) reduces or eliminates lag, stutter and frame tearing for more fluid and better detailed gameplay.
• Auto Low Latency Mode (ALLM) allows the ideal latency setting to automatically be set allowing for smooth, lag-free and uninterrupted viewing and interactivity.
• Quick Frame Transport (QFT) reduces latency for smoother no-lag gaming, and real-time interactive virtual reality.
• Quick Media Switching (QMS) for movies and video eliminates the delay that can result in blank screens before content is displayed.
• HDMI Cable Power enables active HDMI Cables to be powered directly from the HDMI Connector, without attaching a separate power cable. This makes attaching and using active HDMI Cables as easy as using passive, wired HDMI Cables.

CTS Version 2.1 of the HDMI Specification is backward compatible with earlier versions of the Specification and is available to all CTS 2.0 Adopters.