A USB-C to HDMI 2.1 adapter allows you to connect a device with a USB-C port to a display with an HDMI 2.1 port. This is useful for many reasons, such as: Connecting a laptop or smartphone to a high-resolution monitor or TV Creating a multiple-monitor setup Playing games on a large screen with high refresh rates Watching movies and TV shows in HDR Here are some of the key features of USB-C to HDMI 2.1 adapters: Support for high resolutions: They can support resolutions up to 8K@60Hz and 4K@120Hz. Support for HDR: They support HDR formats such as HDR10, Dolby Vision, and HLG. HDCP 2.3 compliance: They are HDCP 2.3 compliant, which means they can be used to play protected content. Compact and portable design: They are small and lightweight, making them easy to carry with you. Plug-and-play functionality: They are plug-and-play, so you don't need to install any drivers. Wide compatibility: They are compatible with a wide range of devices, including laptops, smartphones, tablets, and gaming consoles.