If anyone else is using the Redline Controller (HMI) with the wireless joypad, I found that I didn’t like having the wireless USB dongle stick straight out of the side. While it’s true that the DRO for my spindle does the same it’s more firmly fixed to the HMI and less likely if bumped to cause any damage.
To improve that situation I bought a couple of right angle USB port adapters from the jungle and I think it helps tuck the dongle into a safer position.

