well, it seems as though it is possible, but whats the reason and why do that when you could easily have a cheap wireless hub, or just have a wired hub which would take up less bandwith than 2 modems and also it would be more efficent on your part for spreading out the connection more evenly. If you were just gonna have those two modems, it would take up alot more space than normal, things would run alot slower and it would make you tear all your hair out.what i suggest is using either Routers or Hubs. These have infinite possibilities as what you can do with them and they spread the bandwith alot easier. But if i may ask again to clarify, whats the reason for wanting two modems?

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What is a physical body. The body is merely an object. It is a form of existence far too impure to store the gods within us called souls. Now you will remember. The bloodstained history. Material desire. Hunger. Sexual Drive. Desire to dominate. Desire for fame. Humanity. As long as there is a body, desires will be born. The human ego will never disappear as long as desire remains present. Humans will continue to fight to fulfill their bodies desires and it will never end. At this rate there is no future.