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HDMI Alt Mode for USB Type-C Connector page
The HDMI® Alt Mode for USB Type-CTM connector allows HDMI-enabled source devices to utilize a USB Type-C® connector to directly connect to HDMI-enabled displays, and deliver HDMI signals and features over a simple cable without the need for protocol and connector adapters or dongles.
This enables two of the most popular solutions for connectivity to come together—the small form factor, reversible, and multi-purpose USB Type-C connector being adopted by smartphones, tablets and PC products, and the HDMI connector, which is the leading display interface with an installed base of billions of displays. Over 355 million HDMI-enabled display devices are expected to ship in 2019, including projectors, monitors, VR headsets and 100 percent of flat panel TVs.
HDMI Alt Mode will support the full range of HDMI 1.4b features such as:
- Resolutions up to 4K
- Surround sound
- Audio Return Channel (ARC)
- 3D (4K and HD)
- HDMI Ethernet Channel (HEC)
- Consumer Electronic Control (CEC)
- Deep Color, x.v.Color, and content types
- High Bandwidth Digital Content Protection (HDCP 1.4 and HDCP 2.2)
It’s up to manufacturers to choose which HDMI features they support on their products with USB Type-C.
HDMI USB Type-C
Yes, this is an HDMI cable, in this case a USB Type-C to HDMI cable. The cable maintains the current cable names including: Standard HDMI Cable, Standard HDMI Cable with Ethernet, High Speed HDMI Cable and High Speed HDMI Cable with Ethernet.
Yes, they have been incorporated into the Premium HDMI Cable Certification Program.
Some manufacturers have produced prototype cables and are ready to launch when the first HDMI Alt Mode-enabled products launch. These cables are required to be compliance tested just like all HDMI cables.
Source devices that can be HDMI-enabled and utilize USB Type-C connectors could include tablets, laptops, PCsand smartphones.
That is up to the manufacturers.
This allows native HDMI features and capabilities to be utilized in a source device and to be directly connected to any HDMI display. Other Alt Mode solutions do not enable HDMI-specific features and also require converters andconnector adapters to connect to HDMI-enabled displays. A simple HDMI to USB Type-C cable can be used to connect USB Type-C devices to native HDMI displays.
It follows all necessary Alt Mode USB Type-C specification requirements.
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This specification supports HDMI 1.4b. The HDMI Forum is responsible for the HDMI 2.0b specification and they have not made any public statements regarding the HDMI Alt Mode for the HDMI 2.0b spec.
Manufacturers are responsible for clearly communicating the features of their products in marketing and sales materials, websites, user manuals, and in markings on their products themselves. In some cases, manufacturers will be displaying HDMI logos.
Most devices that support HDMI technology should have the HDMI logo on the box or on the device itself. Otherwise please contact the manufacturer or check their materials as to whether or not they support HDMI Alt Mode over USB Type-C for their product.
The specification is available to all active HDMI Adopters. Click here to become an HDMI Adopter.
HDMI® Licensing Administrator, Inc. (HDMI LA) is the agent appointed by the HDMI Forum to license Version 2.1b of the HDMI Specification and is the agent appointed by the HDMI Founders to license earlier HDMI Specifications.
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