Dell OptiPlex GX270 - Manual (Page 77)

When you install a drive, you connect two cables—a DC power cable and a data cable—to the back of the drive and to the system board. Some drives may
also have an audio connector; one end of the audio cable will attach to the drive connector and the other will attach to the system board.
Drive Interface Connectors
Power Cable Connector
Connecting and Disconnecting Drive Cables
When removing an IDE drive data cable, grasp the colored pull tab and pull until the connector detaches.
When connecting and disconnecting a serial ATA data cable, hold the cable by the black connector at each end.
Like IDE connectors, the serial ATA interface connectors are keyed for correct insertion; that is, a notch or a missing pin on one connector matches a tab or a
filled-in hole on the other connector.
IDE Drive Connector Serial ATA Connector
NOTE: The serial ATA connector may have an attached cover or shroud.
NOTE: The serial ATA Connector may be straight or angled.
1 power cable
2 power input connector