Epson EQUITY 386SX/16 PLUS - Manual (Page 121)

Guide the tabs on the front of the subassembly over the
opening in the front of the computer so the two small
tabs sit behind the opening and the large tab with the
curved lip sits over the front of the opening. If necessary,
press on the large tab until the subassembly snaps into
place.
6. Locate the hard disk drive and diskette drive ribbon
cables. (The hard disk drive cable is slightly longer than
the diskette drive cable.) Look at the back of each drive to
make sure you know which cable is which.
Installing and Removing Options 5-37