TheOneCurly

As I understand it, NAT is a firewall with only a very basic configuration: allow all outbound and accept only established inbound. If you don’t expect to have any incoming connections and completely trust all your internal devices then its good enough.

However, if you start wanting to port forward for servers (SSH, FTP, video games) you need to poke holes in the NAT firewall and it has no additional configuration options to help you. The same goes for if you have internal (ex. IoT) devices that you don’t necessarily trust, there are no rules to block outbound traffic.

That’s what finally did in my 10 year old Corsair. I was technically within specs on wattage with my new 4070 but certain loads would cause it to trip the over current protection anyway.