Keep the dust out!
Apple 815-0570, 815-0571, 815-0572. Cover those unused port openings on your Apple IIGS. There are a total of 7 covers in three sizes. Looking at the back of the computer from the rear, left to right, there are 2 Medium size, 3 Large size, 1 Small size and 1 Large size.
Sold individually. All covers come with the fastening clip.
Note: Covers show the same discoloration that the case had, so coloring will vary.