Hello iamjohngalt,
Welcome ot the HP Forums!
The image of the cable that you provided, does appear that it might work with the combo port.
Image may be NSFW.
Clik here to view.
The only concern that I would have, is the orientation of the two female ports. The cable that I would expect to work would look like this.
Image may be NSFW.
Clik here to view.
Hope this helps. :)