Epson Epson - Manual (Page 102)

3. Remove the screws securing the bracket to the drive bay and
brace. Save the screws for later use.
drive bay
brace
4. Slide the bracket away from the front of the computer and
lift it out.
Installing a Hard Disk Drive in the Mounting
Bracket
You can install a new hard disk drive below the diskette drive
in the mounting bracket once you have removed the bracket
and drive from the computer. In order to fit in this space, your
hard disk drive must be 1 inch high by 3.5 inches wide. If you
have a larger hard disk drive, you can install it in one of the
other drive bays. (See “Installing a Drive in an External Drive
Bay.“)
5-4 Installing and Removing Slimline Drives