Yes. Please consult your computer's user guides for instructions on how to disable the built-in Wi-Fi antenna. (Note: For Windows XP users, to turn off the internal Wi-Fi antenna, left-click on the Wireless Network icon in the system tray and select "Disable." To turn the Wi-Fi antenna back on click on the Start menu, go to My Network Places and then click on "View network connections." Under the "Lan or High Speed Internet" option, right click on your wireless connection and select "Enable.")