When you see , you are looking at a device designed for high throughput, capable of saturating the high bandwidth of USB 3.0, 3.1, and 3.2 connections.
If the computer asks to "Format" the drive, the device's hardware is fine, but the digital "map" of your files is broken. usb class-08 amp-subclass-06 amp-prot-50
, however, designates the Transparent SCSI command set. This is the modern standard. It means the device accepts standard SCSI command descriptors (CDBs). The "Transparent" aspect implies that the USB transport layer acts merely as a pipe; it does not interpret or modify the commands. It simply takes the SCSI commands from the host and passes them directly to the storage controller. When you see , you are looking at
Protocol 0x50 is defined by the USB Mass Storage Class Bulk-Only Transport specification. It uses three types of endpoints: This is the modern standard
Desktop environments (GNOME, KDE) may pop up error dialogs asking "Unable to mount drive – no media". This confuses end users. Embedded developers often add a udev rule to suppress this: