So, after many researchs, i have found this card => http://www.kalea-informatique.com/mag/fr/product-9251178.htm
It is a PCIe 2.0 sata controller board with 4 ports SATA 3 6GBps on a port 2x (ok with 2x, 4x, 8x et 16x), based on a Chipset Marvell 88SE9230. This board have his own bios, linux friendly installed drivers.
I will make a new post of it, i am pretty sure that other people have the same motherboard, and i have searched for many days to have the rights infos, it could help i guess
I should receive the board on friday, i keep you in touch
Thank again guys