I should have been warned by negative reviews posted by other buyers. The unit that I received looked so beaten up like it was picked up from dumpster (and so it was as later my conference only grew on it). A few months after the purchase the pc died. I took it to a local technician where he told me that pc was enormously dirty inside and  the contacts on motherboard just failed bc of that. The cleaning/testing cost me $60. Buy at your own risk.