Vendors of Dell models may be selling units from overseas, which voids Dell's warranty. I bought this unit a few months back - motherboard dies. After MONTHS of waiting on Dell support, they finally tell me: PConline365 has bought this in Europe, they won't replace it since it was sold to me in America. Waited weeks for PConline365 to reply to messages, nothing. BE CAREFUL, these aren't covered if PConline365 or vendors like them are selling them.