Dell OptiPlex 960 (Late 2008) - Manual (Page 114)

b. Install the hard drive and shroud assembly in the chassis (see Replacing the Hard Drive and Shroud Assembly ).
3. If you are installing a 2.5-inch drive:
a. Remove the hard drive and shroud assembly, if necessary (see Removing the Hard Drive and Shroud Assembly ).
b. Remove the 2.5-inch hard drive caddy from the shroud by slightly pulling out the release tabs to free the caddy.
c. Position the new hard drive on the caddy. Orient the drive so that when it is installed in the computer, the side of the hard drive with the label
plate is toward the system board, the screw holes align with the holes in the locator tabs, and the connector end of the drive(s) is toward the
caddy's cable cutout.
1 2.5" hard drive with caddy 2 hard drive shroud
3 pins (2 on each side) 4 release tabs (2)
1 2.5" hard drive with caddy 2 hard drive shroud
3 release tabs (2)
NOTE: When mounting hard drives onto a 2.5-inch hard drive caddy, the primary hard drive must be mounted on the flat side of the caddy with the label
plate away from the caddy, and the secondary hard drive must be mounted on the U-shaped side of the caddy, with the label plate facing the caddy. In
both configurations, the connector end of the hard drives must be toward the cable cutout.
1 2.5" hard drive 2 2.5" hard drive caddy
3 cable cutout 4 screws (4)
1 2.5-inch hard drive caddy, U-shaped
side up
2 2.5-inch hard drive, connector
end
3 cable cutout 4 screws (4)