I responded there as well, and yes you need one. I did a quick test and got about 600 meg, but I am not sure if the limit was the firewall or the laptop I was testing on. A similar system that was scratch built got over 800 meg. Either way, well over the 300 meg connection you have.
That’s so cool! My uncle owns a business and he also manufactures products like this. They also have huge speakers and home theatre systems. I have seen this thing at their store as well. I remember they took help of Warehousing service Dallas once for storing all their goods and I visited the warehouse with him. It was huge and I was so impressed with their service. Everything was packed properly just like this.
I own one of these and I can vouch for their cool factor. Their tech support is really good. The power board failed on mine well past warranty and they provided a new one at no cost. I upgraded the memory card to 8GB and now I can run applications alongside smallwall with zero issues.
Software developer, IoT security architect, maker of smoke