The 2.4GHz Wireless Antenna Extension allows you to place the antenna at locations other than the back of the computer. By doing so, wireless reception quality can be improved.The back of a computer case usually has a bunch of cables running around, and it is probably against the wall. In most cases, it is difficult to receive a good signal at the back of a computer case.With the 2.4GHz Wireless Antenna Extension placed at a less distraction area, wireless signal strength can be improved tremendously.