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HDMI Forum debuts mandatory certification of cables for HDMI 2.1

07 Jan 2020 | Rasmus Larsen |

At CES 2020, HDMI Forum announced a mandatory certification program for all 'Ultra High Speed' HDMI cables. A cable must include support for 4K and 8K video as well as all other HDMI 2.1 features. Look for this logo.

Mandatory certification

HDMI 2.1 is switching to a new signaling system called FRL (Fixed Rate Link), which replaces TMDS in HDMI 2.0. That is why new cables are required to take advantage of HDMI 2.1. These cables are labeled 'Ultra High Speed' and at CES 2020 the HDMI Forum announced that it is implementing a mandatory certification program for all Ultra High Speed HDMI cables. Certified cables will carry a new logo with a hologram and QR code to help consumers identify good cables and to help them avoid counterfeit cables. Consumers should look for this 'Ultra High Speed' logo.

HDMI Ultra High Speed cable for HDMI 2.1

- "The Ultra High Speed HDMI cable is the only way to ensure all the features and capabilities of the HDMI 2.1 Specification are delivered from a source device to a display. Ensuring Ultra High Speed HDMI cables are compliant with the HDMI 2.1 Specification is essential to the HDMI eco-system," said David Glen, president of the HDMI Forum. "The HDMI Forum’s mandatory ATC-only certification requirements are designed to ensure cables are compliant with the HDMI 2.1 Specification. And the anti-counterfeit Ultra High Speed HDMI Certification Label and its scanning results provides a visible verification of certification that a product meets the HDMI Forum’s requirements." Cables are being tested to check for 4K and 8K video bandwidth, QMS, VRR, eARC, and all other HDMI 2.1 features. They are also being tested to meet current EMI requirements to minimize wireless interference. Testing must be carried out at an HDMI Authorized Testing Center (ATC). Cable of any length must be tested and certified. 'Ultra High Speed' cables are backwards compatible with HDMI 2.0. - Source: HDMI Forum



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