I saw a similar post on a thread below, but my question is different in one key way:
I was wondering if it is possible for me to use an external hard drive (Seagate FreeAgent GoFlex) as a spare internal hard drive. It is approximately the same size as a Western Digital PassPort drive, for those who are unfamiliar with the drive. It is smaller than a typical external hard drive, so I was wondering if it was possible.
Is has an eSATA connector, if that makes a difference.
You can make the drive into an internal by removing the hard drive from the external casing, which makes it a bare drive, and installing it in the case. Don't install an external housing inside your case.
Are you done using the external device and looking for a better alternative than throwing it in the trash? Or why do you want to do this? If I understood what you are trying to accomplish, I could give a better answer.
I included the 'why' on another forum i posted on but happened to forget to do so here.
Im currently trying to put together a build for a new computer. My hopes were to include both a SSD and a traditional 7200rpm data drive, but my budget does not allow for this at the moment. In doing this, i could purchase the SSD now and get the 7200rpm data drive later.