PC Knights desktops are assembled by PC Knights. We provide a one year warranty with our new desktops. We use all retail parts in our new systems. This means that the parts have manufacturer warranties of there own. This allows you to exchange defective parts up to five years after the purchase date. In our opinion the important reason to use retail parts is because they last much longer then the origional equiptment manufacturer warrantied parts you receive when purchasing a major name brand desktop.