When running a guest VM in VirtualBox, it sometimes is advantageous to be able to share files between the host and VM guest instances.
This post contains instructions for installing the RALINK wireless drivers for ALFA external wireless adapter on Mac. Note that the RALINK drivers are necessary on the Mac host when used in place of the native wireless, but NOT required when running the wireless adapter in a Kali linux VM. In that case, the RALINK drivers are provided from the Kali distro.
Please click the link below for installation instructions for the Mac host installation.: