**Genuine**Active PFC 300W TFX Power Supply! Support/Replace Dell Inspiron530s /531s SFF Slimline Power! Active PFC(Auto Switch) TFX "Genuine" 300W Power Supply! One Year warranty with best quality! ***Confidence Selling/Buying*** Direct from factory offering you the best price! Please contact us for large quantity. We have it in stock. This TFX Form Factor Power Supply is used with MicroATX slim case. It provides robust and reliable output for your entire system, while the 80mm "SILENT" fan cools the PSU to keep it running at peak performance.