usblist2.exe is a utility used primarily for updating the firmware of Samsung and HP laser printers
You have “Unknown Device” or “USB Device Not Recognized” errors. An old blog post recommends running a tool that contains usblist2.exe to purge old USB drivers. You want that tool. usblist2.exe download
If you have already downloaded your printer's firmware update, extract the folder; usblist2.exe is likely already sitting right next to the firmware file. samsung.com Common Issues firmware update m2070w - Page 2 - Samsung Community usblist2
This is the industry standard for listing USB devices. It is free, lightweight, and trusted by IT professionals worldwide. extract the folder