This is a modern Smart Home Controller System which includes Computer, Z-Wave Plus interface(US version) with external antenna, Control interface.
This system includes everything you need to build a modern smart home system.
The computer is raspberry Pi 4B which is very powerful to build a Smart Home System and the power consumption is less than 3 watts, The Z-Wave Plus interface includes an 3dBi external antenna which improves wireless range and system robustness. And if you like, you could change a higher dBi antenna.
The aluminum box is the heat dissipation so the system has no fan. the system is quiet operation. The little LED light indicates the running mode while you use proper software.
This system could run HomeSeer HS3 or HS4 software with home bridge which enabling iOS device to voice control your home devices, Licenses of Pi Version is included.
You could install free software such as Home Assistant, openHAB,Domoticz etc by yourself.
This system includes Pi 4B 8GB computer, Z-Wave Plus interface, Antenna, Power adapter.
This is the perfect portable NAS when you travel.
You can easily to add NAS(Network Attached Storage) function by issuing following command:

sudo apt-get update

sudo apt-get upgrade

sudo apt-get install samba samba-common-bin

sudo mkdir -m 1777 /home/pi/Data

sudo mkdir -m 1777 /home/pi/Music

sudo mkdir -m 1777 /home/pi/Video

sudo nano /etc/samba/smb.conf

sudo smbpasswd -a pi