https://forums.virtualbox.org/viewtopic.php?t=369

https://www.virtualbox.org/wiki/Downloads

# this is for VirtualBox usb permissions
# 1001 is the group ID of vboxusers on my machine
none    /proc/bus/usb    usbfs    devgid=1001,devmode=666    0    0
# end of VirtualBox edits

gpasswd -a $USER vboxusers