The adapter supports 4K video output at 60Hz ... it to connect your iPhone 15 to an external monitor. The adapter will also work with other USB-C devices, including iPads, Macs, Android ...

Then connect the TVs or monitors to the splitter's output ports. If the HDMI splitter requires external power, plug in its power source. Finally, turn on the source device and all connected displays.

So, I have a work laptop with a HDMI port, but the monitor they also gave me is DisplayPort ... converter or an external dock with displayport output. HDMI to Displayport and vice versa are ...