I have two of these surplus to requirements. An excellent cheap way to get Z-Wave devices into Home Assistant as HA have a native connection to Vera here. This is how I had mine originally connected.
Looking for $30 each + postage. Pick-up is Beach Haven, Auckland.
Running UI5 and heavily customisable with great community support, these will easily run 20 or so devices.
http://www.myzwave.net/index.php/reviews/vera2-z-wave-controller-z-wave-module-review/