The POCO X7 does not support wired video output.
Wired video output refers to the ability of a smartphone to transmit video signals to external displays such as TVs, monitors, or projectors through physical, wired connections. This feature allows you to mirror or extend your smartphone's screen or play videos and presentations on a larger screen.
For your reference, here are the types of wired video output:
1. HDMI (High-Definition Multimedia Interface) is the most common wired connection for video and audio output. You can use a USB-C to HDMI cable to connect your smartphone to a TV for streaming or presentations;
2. MHL (Mobile High-Definition Link) is a technology that enables smartphones to output high-definition video and audio through a micro-USB or USB-C port to an HDMI display;
3. Slimport is similar to MHL and enables smartphones to connect to HDMI displays, and also supports video/audio output from a smartphone to an HDMI-compatible TV, monitor, or projector via an adapter.