How many wifi interface(mac address) on smartthings hub v3?

I am using smarts hub v3.
I wonder how many wifi interfaces this device has. We had a MAC address (28:6D:97:70:6D:6D:9A) that we identified two months ago, but now we have a different MAC address (28:6D:97:70:6D:6D:6D:99). The last number has been reduced. If you have the same experience, please reply.
thanks, charles

It has one for the Ethernet port and one for the wifi chip.

Thank you for your quick reply.
by the way, my wifi chip’s mac address has been changed. Do you have any similar experience with that? :slight_smile: