General
Two of these drives (DSDD) were installed in my 2nd North Star Horizon. According to my information these drives were later labeled World Storage Technology (W.S.T).
Pictures
Since I don't have a manual, I can't say exactly what function the empty dip header on E1 has. It is not the termination resistor.
Alignment
One of my two drives works perfectly, but the other one often has read errors. You can only adjust the track 0, not the azimuth. Maybe it's the stepper, because I can't get all the tracks to read correctly.