Support for USB 2.0 and USB 3.0 devices, VirtualBox RDP and PXE boot for Intel cards. See this chapter from the User Manual for an introduction to this Extension Pack
Please install the extension pack with the same version as your installed version of VirtualBox
VirtualBox 扩展包 用usb设备时需要安装，请注意版本号，这是4.3.2的
