The computer doesn't have wifi capabilities without a wifi USB adapter.  They do not include a wifi USB adapter.  I had to purchase one on my own for $40.  Also, I purchased a 16MB RAM graphics card.  I am unable to open the side panel of the tower to install the graphics card.  I took the tower to Staples and Geek Squad and neither store could open the side panel as it appears the computer was reassembled incorrectly by the seller.