There is a growing list of hardware options available, some of which are listed below. These devices, coupled with OXRS firmware, provide the backbone of the OXRS eco-system. There are a number of different makers contributing designs, with online stores you can purchase from directly.

Rack32I2CRJ45DIN Relay Driver 4chSense RJ45Rack32 KNX Shield
Room8266Modular I2CRJ45PWM ControllersSmoke Detector SD 16 Port
OXRS BlackModular Security I2CRJ45
Rack Fan ControllerCBUS To RJ45
Rotary Encode To RJ45
Rotary Encode