Is it Okay to use power cord for a Maxtor OneTouch IV on a III

[Sam*]

Gang,

I have a maxtor onetouch III (300GB) and a Maxtor onetouch IV (500GB). I can't find the power cord to the III. Can I use the power cord for the IV with the III?

The installation pdfs for both drives show power cords that, at least, look the same: a regular plug that connects to a brick and then the brick has a thin wire with circle thing that plugs into the drive.

Thanks,

Sam*