Dell Inspiron 545 545S Series Intel Socket LGA775 Desktop Motherboard T287N 0T287N CN-0T287N.Dell Part Number: T287N 0T287N CN-0T287NCompatible Part Numbers: DG33M05Compatible Models: Dell Inspiron 545 545S SeriesSpecifications: 4 x USB Ports6 x Audio PortsRJ-45 (LAN)VGA Port