If you motherboard didn’t include an Ethernet connection, you can add this functionality by installing a network interface expansion card. Even if your motherboard did include an Ethernet connection, you may want to add functionality for a different style or speed, which can be added via a network expansion card.
You can even install a multi-port Ethernet expansion card, which would be good on servers. A multi-port Ethernet card provides multiple Ethernet connections on a single card.
