Patent ID: 8456830

Claim:
A motherboard, comprising: a serial advance technology attachment (SATA) connector operable to be connected to a hard disk drive (HDD); a first serial attached small computer system interface (SCSI) (SAS) connector operable to be connected to a second SAS connector of an SAS card; a switching circuit connected between the SATA connector and the first SAS connector; and a connector electrically connected to the SAS card; wherein if the HDD is an SATA HDD, the switching circuit is disconnected from the first SAS connector, the motherboard communicates with the SATA HDD through the switching circuit and the SATA connector; if the HDD is an SAS HDD, the switching circuit is connected to the first SAS connector, the motherboard communicates with the SAS HDD through the SAS card, the first SAS connector, the switching circuit, and the SATA connector.