Is this supported https://www.mi.com/miniwifi/ ? What are the specs?
It sells at https://www.aliexpress.com/item/Xiaomi-WiFi-Portable-Mini-USB-Wireless-Router-Repeator-WiFi-USB-Adapter-With-Free-1TB-Cloud-Storage/32890569417.html for less than $4
It is a 2.4Ghz n router.
That is not a router just a Wifi Adapter.
Any routing is performed by the Host.
You are telling me that it does not work without a computer...You may be right:
https://wikidevi.com/wiki/MediaTek_MT7601U
From the reviews it seemed you can set it up as an access point: https://www.techmesto.com/xiaomi-mi-mini-wifi-usb-routeradapter-setup-guide/ but I guess the logic is on the computer side.
It appears to be a WiFi device capable of STA and Clients modes.
This is not a guarantee that it is a router.
Can you provide this information?
It isn't listed in the Table of Hardware.