I bought these:
Wathai Receiver DVR Xbox TV Box... https://www.amazon.com/dp/B07R659J8Z?ref=ppx_pop_mob_ap_share
Amazon Basics USB Type-C to USB... https://www.amazon.com/dp/B01GGKYXVE?ref=ppx_pop_mob_ap_share
You can’t hear the fan. The trashcan sits on top and the usb-c powers the fan.
I would wait to buy. You may not have issues like some have had. Heat was a problem for me, the fan has helped. Others didn’t see any benefit. The most important thing with these things are placement in your house. No amount of fans will fix crappy location. Also use your own router and turn off the WiFi on the gateway. Run it for a while then assess for heat issues.
I got this
Wathai Receiver DVR Xbox TV Box... https://www.amazon.com/dp/B07R659J8Z?ref=ppx_pop_mob_ap_share
And this (these)...
USB C to USB 3.0 Adapter... https://www.amazon.com/dp/B098NZW7JD?ref=ppx_pop_mob_ap_share
I ran the fan from the bottom with the gap sealed and have been running it from the top recently. From the top has been working better for me. Too much stuff on the bottom in the way of airflow. Been thinking of eventually picking up another fan and running 2 eventually.