Compaq Armada M300 Series Reference Manual page 75

To remove a device from the MultiBay in the mobile expansion
unit:
1. If the MultiBay device is a drive, remove any DVD, CD, or
diskette disc from it.
2. Slide forward the MultiBay release latch
the mobile expansion unit.
3. Pull the MultiBay device from the MultiBay
To insert a device into the MultiBay in the mobile expansion unit,
be sure the drive connector is facing in, then slide the MultiBay
device into the MultiBay until the connector is seated.
on the right side of
.