Dual Ethernet Card -

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

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

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? Adding a second (and third) port provides several

: Find an empty PCIe slot, remove the metal bracket on the case, and firmly seat the dual Ethernet card. Secure it with a screw. Why Use a Dual Ethernet Card

: Turn a standard PC into a high-performance router/firewall (using software like pfSense or OPNsense). 2. Hardware Selection

: Connect to two separate networks simultaneously (e.g., a private internal network and a public internet-facing one) for better security.

: If one connection fails, the other can take over automatically, which is critical for servers.