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?
: Power down your PC and unplug it. Touch a metal part of the case to discharge static electricity. dual ethernet card
: Connect to two separate networks simultaneously (e.g., a private internal network and a public internet-facing one) for better security. A dual Ethernet card (or Dual NIC) is
Once installed, both ports will appear in your menu: Windows 11 How to add a second IP address to a network card dual ethernet card
Adding a second (and third) port provides several advanced networking capabilities: