7.4.5.4 Installing the 4x 3.5-inch HDD extension box
Figure 201: Checking mounting bracket positions
Ê Using a screw driver, bend the mounting brackets of the top and middle
installation bays outwards:
Ê Bend up the upper four mounting brackets (see blue arrows).
Ê Bend down the lower four mounting brackets (see orange arrows).
Ê Disengage the accessible drive locking bar as described in section "Opening
the accessible drive locking bar" on page 91.