Dual-Band Ethernet Connection

[RamboPenguin]

I recently got a dual-band wireless router and I use the switch on the back of it to connect an ethernet cable to my desktop. I see that it has a 2.4ghz connection type and a 5ghz connection type. Does my computer automatically switch between the two as it needs to or does it just use one? If it only uses one how do I make it use the 5ghz one when I'm connected with an ethernet cable?

Hope that makes sense. Leave any questions below if you need clarifying.
Thanks in advance

 

[rar_54]

The dual band 2.4 and 5g connections are Wi-Fi (radio), while the Ethernet cable is 1G connection. I wouldn't worry too much about which is used since all three connect you to the up-link on the other side of your router that connects to your ISP. The up-link is likely much slower than the connections between your pc and the router.
That is unless you are connecting multiple PCs to the router. If this is the case, use Ethernet cables when possible. If using Wi-Fi, use a 2.4 adapter on one pc and a 5G adapter on the second PC, since WI-FI bandwidth is shared between computers when they are using the same frequencies.