How to quickly copy soundfonts to SD of Zynthian

I have my soundfont library in a folder on a USB and in a folder of my Win10 notebook.
When I flash a Zynthian OS, the copy of soundfonts takes a lot of time if I use wifi or eternet cable.
Could you suggest me the fastest way to do it?

I copy them using sftp.

In the stable release, for sfz I can create directories to groups the soundfonts.
For sf2, AFAICR, they all go inside the same directory, I might be wrong but I can’t check right now :slight_smile:

If you don’t use linux you need a ssh/sftp client to connect to your zynthian, you’ll get a file manager like interface.

Hope it helps.