USB mass storage device class | Article about USB mass storage device class by The Free Dictionary
USB mass storage device class
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USB mass storage device classThe software in a USB-based portable storage device that, when plugged into a computer, exposes the device's contents in the same manner as a built-in hard drive. USB-based devices such as flash memory drives, memory card readers, digital cameras and external drives use this device class protocol. See FAT32 and USB drive.