I don’t own this radio personally, I just posted the connections for a homebrew Digirig cable. At this time there is no pre-made cable for QT60 available in Digirig store. You’ll have to make one at home or order it from somebody who offers custom cables.
Just an update to this topic, I’m hoping there will be some consideration into making a cable available for these radios. It’s hard to make a good looking and rugged cable for an RJ45 radio so a nice molded cable would be great. Especially since the manufacturers have spent the time to update this model and the QT80 Pro to make a nice single-cable solution possible. Here is a web page that covers both models with info similar to the PDF KI4OTK posted. Please please please?? QT60 PRO & QT80 Data-mode Operation Guide – Radioddity