I converted my cable park to a USB-C cable (male to male) and lots of adapers (the short sort you can keep in a box) years ago. Yet i have still some devices with a mini-B female port.

Only thing i found online are cables and everything else. Heck, there's even mini-DP > C and ethernet > C in that form factor.

To clarify, i look for something like this but mini-B instead of micro.

edit: Region is Swiss, Europe.

editedit: thanks guys, found one.