Material PRO! Nothing to say at the moment I discovered the everyday time to get used to it, I just say that it is already super !!!!! I had Windows XP PRO before, but Windows 8.1 is paradise. The computer is a feat from ASUS, I recommend it to all everything is hard disk capacity, cache, graphics, incredibly fast! A little more expensive than other brands without other model to compete with him, we are really disappointed. I have only one thing to say "BUY"