USB switch/USB hard disk jukebox

[Olivier Nicole]

Hi,

I am thinking (long term project) to use several USB hard disk for
achiving purpose.

One hard disk would be connected at a time, but that would be nice to
be able to connect and disconnect the disks via software.

Have you heard of some kind of USB disk jukebox?

Have you heard of some kind of USB switch that allows to connect
several devices to one PC, but enabling and disabling each port
individually, via software?

Bests,

Olivier