Quote:
Originally Posted by
Vlad Theimpaler 
Those are Seagate GoFlex external drives, not (bare) 3.5" internal hard drives. (Please correct me if that statement is wrong.) I realize that a number of folks buy these, crack open the external enclosure, and take the hard drive out to swap it into a PC, but it's much more convenient to not have to break something to get what you want/need (to me, at least).
No.
You don't have to break them.
These come with a end that simply unlugs. It exposes the SATA POWER and SATA CABLE connectors on the bare drive- Mounting it in a PC case is not possible using standard cage mounts since the HDD is still in the plastic shell- but if you don't move your PC around you could just throw it into the case and not have to "break open" the case. It can be converted back to an external by just plugging back in the end piece.
I will try to show you a picture.
All that said- I just break them open with reckless abandon. I break them open with no intention of even trying to preserve the plastic case. I always install them as internal. it's easy.
It does not void your warranty. People say it does- but I ran the serial number from the bare drive on the mfg web site and it confirms the drive is still under warranty.
I even did this with a 2TB hitachi and got an RMA replacement after trashing the case and sending back just the bare drive.
Just a heads up.