DE100, Complete Assembly, 80-pin, U320, Repeater/Isolator, Beige The Data Express DE100 is a steel-constructed removable drive enclosure for mounting 3.5" form factor, half-height (1.6") or low-profile (1") SCSI or Parallel ATA (PATA, or IDE) drives into 5.25" half-height peripheral bays. All Data Express models feature a front-accessible key lock which secures the removable carrier within the receiving frame.