Audio Device Document 1.0

  Audio Data Formats 1.0

  Audio Terminal Types 1.0

  USB MIDI Devices 1.0

Cable Working Group（电缆工作组）

  Cable and Connector Class 1.0

Common Class (CCS)（公共类）

  Common Class Base Specification 1.0

Communications Device Class（通信设备类）

  Class Definitions for Communication Devices 1.1

  CDC Subclass Specification for Wireless Mobile Communication Devices

Content Security（内容安全）

  Device Class Definition for Content Security Devices 1.0

  Content Security Method 1 - Basic Authentication Protocol 1.0

  Content Security Method 2 - USB Digital Transmission Content Protection Implementation 1.0

Device Firmware Upgrade Group（设备固件更新）

  Device Firmware Upgrade 1.1 (new version 31-Aug-2004)

Imaging Class（图像类）

  Still Image Capture Device Definition 1.0

IrDA（红外接口类）

  IrDA Bridge Device Definition 1.0

Mass Storage（大容量存储器类）

  Mass Storage Overview 1.2

  Mass Storage Bulk Only 1.0

  Mass Storage Control/Bulk/Interrupt (CBI) Specification 1.1  

  Mass Storage UFI Command Specification 1.0

  Mass Storage Bootability Specification 1.0

Monitor（监视器）

  Monitor Device Document 1.0

OpenUSBDI（开放USB驱动器接口）

  OpenUSBDI Specification 1.0

Physical Interface Devices（物理接口设备）

  Device Class Definition for PID 1.0

Power（电源）

  Power Device Class Document 1.0

Printer Class（打印机类）

  Printer Device Class Document 1.1

Test & Measurement Class（测试和测量类）

  Test & Measurement Class Specifications