Lenovo ThinkCentre 41N5622 - Manual (Page 18)

To attach the cables to the drive, do the following:
1. Attach a 7-pin Serial ATA data cable connector 1 to the Serial connector on
the drive.
2. Attach a 15-pin power cable 2 to the power connector on the drive.
If your computer has more than two Serial ATA connectors on the main board, use
the second or third connector to connect the drive. For more information on
detailed hardware installation, refer to your system documentation. Be sure that
the cables will not be pinched or crowded by the computer cover and that all other
cable and power connections are secure.
1-4 ThinkCentre and Lenovo DVD-ROM Drive (Serial ATA) User’s Guide