QUOTE(Darkstar2010 @ Sep 16 2011, 11:42 AM)
Is the only difference between those two things the price really? Or are there other pros and cons?
The SATA card obviously is internal and goes in your desktop. X360USB can be used through USB on any computer or laptop. I, personally, find it a lot more appealing and easier to use. It's much less of a hassle.
QUOTE(Darkstar2010 @ Sep 17 2011, 08:53 AM)
So all I need to buy is...
X360USB Pro
Probe III
Molex Adapter
And I can flash my Xbox 360 with that?
Correct. Although, you may not need a probe. Maybe I skipped over the part where you stated what drive you have, but probe's are only needed for certain Liteon drives. If you don't have a Liteon, then it is unnecessary to buy a probe.