Locate the vacant storage drive module slot in the controller, and then
ensure that the release lever on the filler panel is fully opened.
Slide the filler panel into the vacant slot by pressing the middle of the
filler panel faceplate with your thumb or finger.
The release lever will close as it makes contact with the chassis. Do not
slide the filler panel in all the way. Leave the filler panel out
approximately 0.25 to 0.50 inch (6 to 12 mm) from the opening.
Using your thumb or finger, press on the middle of the filler panel
faceplate until the release lever engages with the chassis.
Close the release lever until it clicks into place and is flush with the
front of the controller.