Hello
If you want to control the mount with your laptop then you may want a EQDIR cable.
https://www.myastroshop.com.au/produ...p?id=MAS-030L1
or
https://www.bintel.com.au/product/sh...v=6cc98ba2045f
or even cheaper make your own
https://stargazerslounge.com/topic/3...-heq5-pro-diy/
You then control the mount with software called EQMOD (free).
PHD guiding (also free) to control your guiding.
I am not familiar with the GPUSB but I don't think you want to use it. I may be wrong and I am sure others may correct me
I think you need a rj12 cable of some sort to use the GPUSB.......
Jeremy