VISIPRO™ choose not only to use these components to reduce the noise. We add 2 more layers on every modules PCB. The purpose of this additional 2 layers can be illustrated this way. When you drive a car in a heavy traffic road, it is more easy for you to get some collisions with other cars. But if you have an alternative road, the possibility to get a collision is very small. The difference between 6 layers pcb and 4 layers pcb is very clear. The cost is higher. But that's not is issue. The stability is much more important on every computing processes. That's what we really care for.