Amazon Fire Stick Ethernet?

Hello

I recently enabled ethernet in my home (now using a combo of ethernet and the JRS Eco Router to limit RF). With the JRS settings home page, you can see which devices are connecting to and ‘waking up’ the router. I am basically down to just our amazon fire stick which looks like it is continuously connected even when our tv is off. I would like to take advantage of my ethernet to make my fire stick connection wired and allow for the JRS Eco Router to go to sleep for longer, The fire stick requires an adaptor however, and I am curious whether you have any recommendations for an adapter to pair with your shielded ethernet cables. Any info appreciated!

Thanks

Dylan