How to Connect a WiFi Antenna to a PC

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Wi-Fi antenna allows a PC connection to the Internet using radio frequencies. That is also known as the wireless local area network (WLAN). To support WLAN, a desktop PC needs an expansion wireless card having the PCI (Peripheral Component Interconnect) interface with the attached external antenna. Wireless cards are especially convenient in a household with several desktop computers connected to one network router to avoid complicated cable routing.

Skill level:
Moderately Easy

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Things you need

  • PCI wireless expansion card
  • CD with wireless card drivers (packaged with the card)
  • Phillips-head screwdriver
  • 4mm screw

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  1. 1

    Turn off the computer.

  2. 2

    Remove the side cover of the computer case. Note that due to a variety of case designs, you will need to refer to your computer manual for instructions.

  3. 3

    Insert the wireless card into the PCI slot of the motherboard. Secure the card with the 4mm screw.

  4. 4

    Close the computer case.

  5. 5

    Turn on the computer. When the Windows operating system loads, log in to the administrator account.

  6. 6

    Insert the CD with wireless card drivers into the computer's CD/DVD drive. Follow the prompts to install the drivers on your system. Restart the computer if prompted.

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