Enjoy High-Quality 4K HDMI Video: This Surface Pro 9 HDMI adapter supports up to 4K@30Hz video resolution and backwards compatibility with 2K/1080p/720p/480p/360p. Triple Display USB Hub for Surface Pro 9/10/11: Enhance efficiency by tripling displays (Ultra HD 4K@30Hz HDMI + 80Hz@30Hz USB-C Thunderbolt 4) for Surface Pro 9/10/11/X. Expand workspace with 2 monitors, supporting up to 4K@30Hz HDMI and 8K@30Hz USB-C Thunderbolt 4 resolutions.
eBay