SCSI ... ain't gonna happen. Whatever micro is running this thing will have been budgeted with just enough grunt and just enough pins to do the job demanded of it, and nothing more. SCSI is a much more demanding task on both fronts.
Besides which, what would be the point? If you're doing a "microcontroller interface hack", what does this device add to the solution? A ten cent socket and a case?
Completely unrelated.
As in read/write? I assume so. Ask the seller.