This puts me in mind of trying to find one of those dual FireWire/USB > 30 pin cables that Apple sold around the time of the 4th gen iPod. My 4g desperately needs one if I want to sync more than a few hundred tracks, because USB won’t charge it, and I haven’t owned a Mac with a FireWire port since 2011. But man, this things are pricey now, because they just aren’t available anywhere.
I could use a thunderbolt socket, but I’d need a TB3>TB2 adapter first, and Apple want £40 just for that. Then add on a TB2>FW adapter and suddenly I’ve spent twice what I paid for the iPod and the flashmod it’s running…