Win7 virtual Machine in VirtualBox 5.0 in Mac OS X 10.10.5 does not work with USB 3.0 devices

The VirtualBox 5.0 is already well-supported for USB 3.0, assuming that the host itself supports USB 3.0. A few days ago because you want to burn a Win10 bootable CD image to a USB flash drive, and the physical machine that you use is a MacBook Pro, it has a VirtualBox 5.0 and a Win7 virtual machine installed on it, so it starts in VirtualBox Win7 Virtual machine, and then insert a USB 3.0 USB flash drive, found VirtualBox error, said the port could not be found. Carefully check the various settings, the USB flash drive is 3.0, in the MacBook Pro is able to recognize the use of the normal, and VirtualBox to the Win7 virtual machine set is USB 2.0 compatibility mode, so stop Win7 virtual machine, the USB mode to change For 3.0, start the virtual machine again, insert this U disk, VirtualBox no longer error, but the virtual machine does not recognize this U disk, open the virtual Machine Device Manager, found that there is a yellow exclamation point, unrecognized USB bus device. Online check, the original Win7 itself does not support USB 3.0, the operating system does not have a USB 3.0 bus driver. The Win 8/8.1/10 has natively supported USB 3.0. Considering that the host is using an Intel processor (second generation i5 3210M) and chipset, can you fix this problem by installing the Intel USB 3.0 for Win7 driver in the Win7 virtual machine? Then to the Intel website to search, sure enough to find this URL:

https://downloadcenter.intel.com/download/21129/ Usb-3-0-driver-intel-usb-3-0-extensible-host-controller-driver-for-intel-7-series-c216-chipset-family

See its description, it is clear that the driver supports Win7, and the maximum is supported only to the third Daicouri processor and the associated chipset. And my host is just the second generation core processor, that's it. After download, unzip the driver installation package in the Win7 virtual machine and execute the Setup.exe installer, and the installation is complete smoothly. Plug in USB 3.0 of the USB flash drive, Win7 virtual machine successfully recognized it, the problem has been resolved.

Win7 virtual Machine in VirtualBox 5.0 in Mac OS X 10.10.5 does not work with USB 3.0 devices