Is Linksys SPA3000 a suitable device in my case?

Hi FreePBX guys,
I have computer machine with 4 NICs, Atom D525 1.8 GHz and 2 GB RAM. I already installed FreePBX on my machine and implemented 14 internal SIP extensions successfully. Now I want to link these extensions to outside by PSTN Fixed Line but my machine doesn’t have PCI-e or mPCI extension for FXO card.

Thus, I am planning to buy Linksys SPA3000 which has:
Three Ports: 1 FXS+1 FXO+1Ethernet

My question: Am I able to use the Ethernet port to link my FreePBX machine to Linksys SPA3000 and make all my internal phones able to dial/receive outside call?
Your help would highly be appreciated.

Linksys SPA3000 can be found here:

Yes, Some answers can be found here:

Thanks dear.

I did start using one of those a few years back to do the same thing but it proved very unreliable and the call quality wasn’t great either so I ended up not using it.