Mine works a treat (ish).
The port shows up on mine as Prolifc USB-to-Serial Comm Port (COMn) and connects with the SynScan Pro software which can then be selected (synscan mobile telescope) for ASCOM.
The functionality is basic, but the pointing accuracy and homing functions are every thing that EQMOD is not for my EQ8. But there is a but - why is that always the case! I don't think that it reliably sends the side of pier data to ASCOM so the dome shutter doesn't align (so what's new). So its back to EQMOD and plate solving to get it to find anything