Changes
=== A1-S Upgrade Kit ===
Vortex offered an upgrade kit consisting of a bare 5,25" drive (BASF 6138) and a an installation manual , allowing to upgrade a single F1-S drive to a dual F1-D drive. To do this, one simply had to install the additional drive in the free slot of the drive case.
=== FDA-1 3" Drive Adapter ===
