The board's size also means that it takes up space behind the drive bays, making installation of new drives more difficult.

Given how thin the machine is, its highly unlikely there's a proper drive bay at all.

This compact machine has three drives and a 3.5-inch vertical drive bay.

A drive bay is a standard-sized area for adding hardware to a computer.

The drive bay is usually just big enough for the drive to fit inside.

The device comes with an empty second drive bay if even more storage is needed.

On top is a drive bay which can house a 5.25" drive.

It only has three 5.25-inch drive bays and one 3.5-inch bay.

Our next feature is installing stuff that goes in the drive bays.

Now you just need to slide the drive back into the drive bay.