Fix VirtualBox Unable to find USB device

sudo adduser your Linux user name vboxusers

And then restart

Data Source:

Http://stackoverflow.com/questions/20021300/usb-devices-are-not-recognized-in-virtualbox-linux-host

Ok, that's my solution, simplified and improved with the help of Vorburger and Boechat.

Short answer:

Execute sudo adduser YOURUSERNAME vboxusers , log out and log in again.

Long Answer:

1. Close virtualbox

2. Execute in bash:  sudo adduser yourusername vboxusers

3. Log out and log in again

4. Attach to your PC the USB devices your want to be automatically Mounted in the VM.

5. Open Virtualbox

6. Select your VM and go to "machine", "Settings", "USB".

7. Check Enable USB Controller; Click on the icon with the USB Plug and the plus, and click on the devices you want To is automatically mounted in the VM. Click "OK".

8. Click on "Start" toolbar button, and ensure your USB devices is recognized and mounted by the VM. Remember that there is to unmount them in the host OS too if you had to disconnect them after you exit the VM.

Note that Extensions Pack and Guest Additions is not the strictly required, but with the Extension pack you can use USB 2.0. You have the also to enable it under USB settings. Without it all your USB devices is controlled as USB 1.0, so they would work at lower speed.

Fix VirtualBox Unable to find USB device