If you enable PC Remote Function [1] it disables UMS so you don't need another cable/adapter plugged in. I notified the author and he updated the article. [1]

If you enable PC Remote Function [1] it disables UMS so you don't need another cable/adapter plugged in. I notified the author and he updated the article. [1] https://helpguide.sony.net/dc/1910/v1/en/contents/TP0002886247.html https://helpguide.sony.net/dc/1910/v1/en/contents/TP00028862...