Adding a second (and third) port provides several advanced networking capabilities:

: Most modern cards use PCIe . Ensure your motherboard has an available slot (x1, x4, or x8 depending on the card's speed).

: Power down your PC and unplug it. Touch a metal part of the case to discharge static electricity.

A dual Ethernet card (or Dual NIC) is a hardware expansion that adds two independent network ports to a computer, typically through a slot. This guide covers why you’d use one and how to set it up. 1. Why Use a Dual Ethernet Card?