AirCard 810 USB3 to RJ45

Hi All,

I want to feed internet to a router in a WAN RJ45 entry.

The AirCard 810 only has output through WiFi or USB3. 

Is there a dongle you know that can transform the USB 3 Signal in RJ45 with female plug?

I know that there is a dock station that does that for the AirCard but last I checked, it's more expensive than the AirCard itself...

Thanks!