Lot x 2 Dell Inspiron 15 3541 3542 SATA ODD DVD Drive Connector Board, identified by part number 4FM50, is a connector board designed for use with the optical disc drive (ODD) in Dell Inspiron 15 3541 and 3542 laptops. This board serves as an interface between the SATA connection on the motherboard and the optical drive, allowing data transfer between the two components. It enables the proper functioning of the optical drive, allowing users to read and write data to DVDs and CDs.