Hello Jingpan, how are you? I did the following test: I opened the evkmimxrt1020_host_msd_fatfs_bm example and put my usb to do the pendrive test. However, after removing the pendrive from the EVK, I put it on the computer, but the pendrive does not appear in Windows. He lost the directory name. So I wanted to know if the example can return the name of the directory.