Text of the audio portion of the hard disk drive installation movie
To install the hard disk drive
Position the hard disk drive inside the hard disk drive rail harness.
Align the pins on the harness with the holes in the drive.
Flex the harness, and seat the other two pins. Here is a close up of a pin aligned with the hole.
Position the tabs on the bottom of the drive rail inside the channel on the drive bay, push down while rotating the drive back until it locks into place.
Connect the signal cable and the power cable. Here is a closer look at the bottom of the drive harness.