Here’s a sample of an office environment product.
MSS-3000 Secure External Removable Hard Disk Subsystem. We packaged a 5 1/4 inch Winchester disk drive system in an interlocking pair of enclosures, one with drive power supply and mechanical interlock, the other with a shock sensitive disk and Aeroflex shock isolation system.
The removable unit must survive all of the bumps and drops of handling when removed from its interlocking base. We utilized a zero insertion force connector for the I/O due to a large number of removal/insertion cycles.
This unit was the predecessor for a family of removable disk products. The unit was awarded a US Patent for the design.
MSS-3000 Secure External Removable Hard Disk Subsystem