The device's default behavior when connected over USB is to serve as a mass storage device.

在通过USB进行连接时，这个设备的默认行为是作为一个大容量存储设备使用。

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Introduce the USB device genus (Mass Storage) and how to realize the USB interface in the embedded system.

介绍US B设备类(以海量存储类协议为主)以及如何在嵌入式系统中实现USB接口。

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USB mass storage pen-drive, or flash-disk,... It prevents data loss against the removing of the mass storage device connected to a computer.

US B大容量存储笔驱动器或闪存盘，…它可以防止数据丢失对连接到计算机的大容量存储设备的移除。

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Any USB mass storage device, such as a mobile phone, MP3 player or USB stick, can be connected.

ENGADGET: Ford USB Music Box adds mass storage playback, smartphone charging to AUX-enabled receivers

Offered through Ford dealers across Europe, the USB Music Box enables drivers and their passengers to plug their MP3 player, or any USB mass storage device, into the car and listen to their choice of music in razor sharp quality.

ENGADGET: Ford USB Music Box adds mass storage playback, smartphone charging to AUX-enabled receivers

The USB Music Box lets you connect any USB mass storage device, it produces a great sound quality very similar to that of the radio - and it also gives you the ability to flick between songs and albums via the controls on their steering wheel.

ENGADGET: Ford USB Music Box adds mass storage playback, smartphone charging to AUX-enabled receivers