Unfortunately, I've sold me - a VM under Virtualbox freezes immediately when driving those USB thingies - but not because of this part of the software but .... Well, first read makes you smart * sigh.
Nevertheless a meaningful - dirt-cheap! - And very good extension, if one drives Fritz Map, Skype and even music on a single computer and simply has no desire to constantly umuzfrickeln any regulator :-)
I can recommend in good conscience and with a smile each.