The MacBook makes an excellent static computer ... there are four fast USB-A ports. You can add Ethernet adapter and a card reader to create your own customizable and updateable dock.
That means you can't connect your cable directly into it. To make it work, you'll need to use an Ethernet adapter from a third-party source. This adapter connects to the LAN cable on the one side ...
Finally, you can grab a 2-pack of USB-C cables here. Ethernet connectivity for reliable and fast Internet The M4 Mac mini comes standard with Gigabit Ethernet, with an option to upgrade to 10Gb.