Found this gem at the flea market. Sansa E200 series. Excellent condition, came with all the accessories. Paid $15. Works with a 128gb formatted as FAT32. : r/rockbox
RockBox Utility Sansa Clip+ или как установить RockBox на clip+ с помощью RockBox Utility
F.Y.I.] Rockbox on Sansa Clip Zip - YouTube
Amazon.com: SanDisk Sansa Clip+ 4 GB MP3 Player (Black) (Discontinued by Manufacturer) : Electronics