A:AnswerIf using the ethernet connection, and connecting to the WAN port on a home router, there is no limit to the number of devices.
If using the built-in Wi-Fi of this hotspot, you can connect up to 20 devices.
A:AnswerI would recommend connecting a router to this device if you plan on connecting cameras/alexa devices since the night hawk is a mobile router/modem the signaldoes not reach far.