Motherboard Manufacturer MSI
Model MS-7325

I'm going to get cable internet. I need to have an ethernet card. I
have a LAN connection on my pc.
Is the LAN connector the connector to an onboard ethernet card? Or do
I need to purchase a card?

I see no reference to an ethernet card in my motherboard manual, only
the LAN connector which is siad to be for a LOCAL network.

Please explain.