HI Paul,
Thank you so much for reaching out to us! I would be more than happy to answer your questions.
Just to make sure I understand the question correctly, do you mean the end that connects to the rear of the docking station, the length of the cable, or the amount of power the AC Adapter provides to the docking station?
Thank you for your patience,
Marc
Product Owner & Technical Support
www.plugable.com/support