T4307 Dell T4307 DELL T4307 Buyer may receive a fan produced by one of 6 different manufacturers (NMB, Nidec, Datech, Sunon, Delta, etc) Dell Part Number: T4307 Comes With Fan and Shroud ONLY Compatible With The Following Dell Systems: Optiplex GX280, Dimension 8400, Precision WorkStation 370, Power Edge 420SC