Lots of USB devices need a mass storage device usb driver given its intermediate action between a USB stack and the SCSI (Small Computer System Interface) layer. The interface is not limited to computer systems only but it applies to lots of other devices. Thus, the mass storage device USB driver is used by many other appliances such as external magnetic hard drives, card readers, digital cameras, external optical drives, CD and DVD readers, portable medial players, mobile phones, GPS systems and many more. When the mass storage device USB interface requirements are met, the devices that support it are defined according to the mass storage class.

While Windows 95 provided very little support for the universal serial bus technology, with Windows 98, the mass storage device USB drivers started been widely available with Microsoft. Although an adjacent driver initially supported the USB storage model, such drivers are now available for free download whenever a specific support for USB flash cards is needed. IT specialists are the ones to fully understand how Windows incorporates or matches with mass storage device USB drives. The average user does not need such specific technical information to be able to connect a flash memory card to a digital camera.

Just like with any auto-run features specific to removable or portable media, mass storage device USB cards are just as vulnerable to the infection with malware as any personal computer. The flash memory stick often becomes a entryway for computer viruses, leading to the infection of more systems. The user lacks control over the device when it comes to the protection of the USB drives. The simplicity and wide compatibility makes these devices very vulnerable. The best advice one can get is to avoid inserting a mass storage device USB stick into an untrusted computer unless there is a hardware read-only function.

The mass storage device usb driver interface fails to work when combined with hard-drive based tools. The USB storage environment allows only functions of generic interface for the very simple read and write commands. Consequently, limitations and dead ends do appear even with the most advanced of technologies too. It is highly probable that translations layers such as the mass storage device USB tools may not be necessary in the future, but until then we have to make the best out of their usage.