I’m not sure what you mean by a USB pen drive.

You may be able to format a drive for FAT32 and have it work with the H9000, but it doesn’t always work out.

If you plug a drive into one of the USB ports on the H9000 and a popup comes up on the front panel, then it works. If there is no popup, then the drive is not formatted correctly or something else.

Our recommendation is using the drive that ships with the H9000, or purchasing a FAT32 formatted drive.