This worked perfectly with my Atlas II mount and ASIair. No need for the handheld controller.
I’ve been using the cable to connect my Dell Inspiron 5570-series laptop to my HEQ5, and it works great! No complaints!
The cable works just fine on my Skywatcher EQ6-Pro mount head. More than enough length to move freely with my telescope. Great price, back ordered at the time I ordered it, but OPT kept me informed as to when it would ship. It arrived as promised. I like working with OPT.
Yup no problems here just a good cable to help you out and does it's job. Also fun fact, you can use the cable outside stellarmate too. Can be applied to any imaging software and eqmod laptop control.