I bought this ST-4 in March as an open box special from Astronomics. I have never used it. I'm using my 216XT with the new windows autoguider software instead. The St-4 has the latest firmware, and comes with the manuals, standard cables, and AC adapter. I Will also include the optional LX-200 interface cable if you want it.
$575 plus shipping & insurace via ups ground to CONUS.