From this paper, we can clearly learn the method to connect USB to HDMI. Besides, definition and operating principle of USB and HDMI is what we can see.
The VisionTek USB-C 4-port USB 3.0 hub lets you connect up to four USB devices to your system through a single USB-C port. Durable, everyday charging and data adapter with four USB 3.0 ports. This hub allows for Fast Charge up to 900mA per port support along with data transfer speeds of up to 5 Gbps when connected to a system USB-C port.
Visiontek USB-C to HDMI USB & USB-C with Power Delivery Adapter
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Retractable Universal Mount 4K HDMI® Dongle Adapter Ring with Color Coded Mini DisplayPort™, DisplayPort, and USB-C®, HDMI Adapter Converters, HDMI
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