USB or ethernet connection

[ReadytoLearn]

I just purchase a Thunderbolt 3 PCLe + i/o card.  It has a USB3 connection.  How should I connect it to my router?  should I use a USB3 to ethernet adapter or can I use a USB cable to connect the two of them?  I heard that USB3 is faster than ethernet.  Can the rounter be connection via the USB port?

Please advise,

Readytolearn

[FURRYe38]

Please post about this here for your model router:
https://community.netgear.com/t5/Nighthawk-WiFi-Routers/bd-p/home-wifi-routers-nighthawk

Normally you don't connect PCs to routers via USB. The USE ports on the router is reserved for USB storage devices and USB printers. 

Good Luck.