That's how it works.
(It all depends on drivers and/or controller on how it shows up in Device
Manager.)
On some systems/controllers, it may be listed as SCSI, on some it may be
listed as EIDE/ATA.
It has no impact on performance. It's just the method of how the controller
communicates with the system.
Under Linux, I think I've only seen it load SCSI drivers/interface for all
my SATA devices.
