Thanks for the quick reply!
I am intrested it this computer: http://en.ksp.co.il/?list_compare=.17157..17158.&store=dizingof
the price here is in Israeli shekels.
My problem here is that i couldn't find this specific model on amazon to read reviews, and every review i did read talks about the "Asus Zenbook prime UX31A" without any reference to the specific serial number. so i don't know if their is a diffrence between the UX31A-R4003H to any other kind of UX31A.
would appriciate advice.