Thanks for those replies,
I'll check for XJH location.
I want a small computer format (mini-itx is smaller than shuttle standard PC) with 2 Eth, 1 Serial and some USB to replace my old router i'm running for years. No noise, very small is the goal for this next step. The other good point is the electricity consumption, imagine your can reach only 19W...
If someone else have some informations about those format (mini-itx, nano, pico-itx), make a post here
Pascal