How to increase the copy speed of a USB flash drive

A friend recently purchased a 64 mb usb flash drive. A few days ago, he copied some small text files to the USB flash drive and copied them only to over 200 files, the system prompts "the disk capacity is full", and the total size of these files is only 30 MB, and the copy speed is quite slow, far less than the nominal speed of kbps per second, he thinks he may have bought fake goods, and finds the author to work with him to find a seller to change the product!

In fact, the above situation is not a problem with his USB flash drive.
This is a fault caused by the file system! The current mobile storage, including flash memory and mobile hard disk, all use FAT file systems. According to the standard definition of the FAT file system, a maximum of 254 files (including directories) can exist in the root directory ).
 
If you directly copy a file to the root directory of the flash memory, you can copy up to 254 files, and each time you copy a file to the flash memory, the system needs to create a file table, while the flash memory does not need to create a file table when copying large files due to continuous writing, therefore, it is much faster than copying a single small file. I suggest you compress all the files and then copy them to the flash memory. This will increase the copy speed.