So far so good. I ordered this power supply after my original one burned out and stopped working. Before I bought this one, I ordered another brand from another website and it stopped working after a few hours. After this experience, I was hesitant to order another standard brand (non-Microsoft) power supply, but that was all I could afford. However, it works great and is surprisingly quiet. I am very happy and relieved. I am also impressed with the professionalism of this store and the customer service. They contacted me quickly to make sure I received the item and was happy with it. I will definitely keep them in mind for future purchases.