Epson Progression U12 - Manual (Page 62)

Removing the Front Panel
You must remove the computer’s front panel if you need to
install or remove a disk drive in an external drive bay or if you
need to remove the subassembly from the computer. (If you are
installing an internal option, you do not need to remove the
front panel.)
Follow these steps:
1. Turn the computer so you are facing the front panel.
2. Release the six tabs securing the front panel to the computer
case, as shown below. You may want to use a flat-blade
screwdriver to release the tabs.
Accessing internal Components 2-5