VESA Develops Early Certification Program for USB Type-C Devices Using DisplayPort Alt Mode

SAN JOSE, CA -- The Video Electronics Standards Association (VESA) today announced the official launch of its early certification test program for products incorporating the new USB Type-C connector and the DisplayPort Alternate Mode ("Alt Mode") standard. Using the DisplayPort Alt Mode standard, a USB Type-C connector and cable can deliver full DisplayPort audio/video performance (driving monitor resolutions of 4K and beyond), SuperSpeed USB data, and up to 100 watts of power. DisplayPort is the only display interface alt mode natively supported by both standard USB-C connectors and cables. The new DisplayPort Alt Mode over USB-C Early Product Certification Program is intended to help ensure interoperability early in the development cycle.

The DisplayPort Alt Mode over USB-C Early Product Certification Program includes a comprehensive test plan that covers all supported features and capabilities. Currently, leading test laboratories Allion Labs and Granite River Labs (GRL) are executing to these test plans as part of the early certification program. VESA also organizes and sponsors PlugTest events throughout the year, in the U.S. and Taiwan, at which VESA member companies can participate in official testing activities.

Early product developers who take advantage of the DisplayPort Alt Mode over USB-C Early Product Certification Program gain the ability to use the DP Certified logo on their products. Nearly a dozen tablets, laptops and monitors have been certified through the pilot phase of this early certification program, including products from Intel (Skylake reference design), Dell, Asus, HP and LG Electronics. Several dozen more certified products are expected to be available by the end of the year.

VESA published the DisplayPort Alt Mode on USB Type-C Standard in September 2014. Developed jointly between VESA and the USB 3.0 Promoter group, the DisplayPort Alt Mode enables the highest display performance available, combined with the USB Type-C connector's high-speed data transfer and power delivery functions. Earlier this year, VESA published the latest version of the DisplayPort standard, v1.4, which incorporates new capabilities that enhance the ability to take advantage of the USB Type-C connector. For example, DP 1.4 incorporates VESA's Display Stream Compression (DSC) technology to facilitate High Dynamic Range (HDR) and 8K video across the USB-C connector.

For more information, visit

Suggested Articles

Slowed spending on nonessentials and China factory shutdowns hurt Apple and others

Even with interest in analog chips for cars and wireless products, the top analog producers struggled to grow sales in 2019 over the prior year

Plans include combining temperature readings with information related to cough sounds in an app.