Integration NEXA-lcmr100 in Homeassistent: Bäst gadget

i have many switches from NEXA of this type

I am looking for a way to controll them and interact with homeassistant.

I have Homeasistant on a Intel-NUC with unoccupied USB Ports.

Now i am looking for a futur-save device that will work with 433 MHZ signals “out of the box” and without any cloud service (with a possiblity to use external antennas).

Whats best to buy?

i found for example this device:
Has somebody experience with it? I mean it seams to be a lot better than Tellstick Znet-Net lite - or?