First of all, the general signal interface of the monitor is: VGA, HDMI, DVI three.
The signal output of the computer host is VGA by default (in the case of no graphics card installed), and if the graphics card is installed, there is more than one HDMI or DVI (after installing the graphics card, the output of the computer host can only be the output of the graphics card, which means that the VGA will be useless for the time being).
Assuming that your chassis has HDMI and DVI for graphics output, and your monitor has VGA and HDMI for interface.
Then you can just go ahead and buy an HDMI cable to dock the chassis and monitor.
If it does not work, you can go to the computer city to buy signal interface converter head, VGA to HDMI, DVI to VGA and so on.