TL;DR: The Nintendo Switch 2 dock is expected to support HDMI 2.1, potentially enabling 4K gaming at over 60FPS when docked. It may use the RealTek RTD2175N-CG chip, supporting up to 4K 120FPS.

HDMI 2.1 is also on both of the next-generation game consoles, the PlayStation 5 and Xbox Series X. In fact, to get the most out of those consoles you'll want a TV that supports at least some HDMI ...

The new HDMI specification was announced at CES 2025, and it heralds some serious gains against its predecessor, HDMI 2.1, main among them faster speeds and broader 8K functionality.

It supports USB 3.1 Gen 1 for data… A 29W USB-C Power Adapter ($49) looks like the middle child between Apple’s 12W USB Power Adapters for iPads and the 40W adapters it sells for MacBook Airs.

HDMI 2.1 is the new standard of this technology, capable of higher video resolutions up to 10K, and higher refresh rates than regular HDMI 2.0. These include being able to display 4K at 120Hz and ...

Some HDMI 2.1 TVs, for instance, don’t support the full 48Gbps. Likewise, both the Sony PlayStation 5 and Microsoft Xbox Series X fall short of supporting the full 48Gbps.

HDMI 2.1 is supposed to encompass a vast array of next-gen display features, but it doesn't. And that could be a big problem for monitors and TVs going forward.

HDMI 2.1 promises to deliver 10K video, 120 Hz refresh rates and much more. Here's everything you should know about HDMI's next revision.