Nope 2x USB C sticks, 2 USB A via an adaptor and an SSD in a housing using a quality C to C lead.
No playlist files on the drives, the track it goes to starts with an A but it then plays the rest of the directory in the usual order, there are several tracks starting with 01 02 03 etc. then that track.
Please excuse spelling/typos. Apart from being a clot it turns out I had one on my cerebellum that's now causing various problems!