buy this for a work computer run window 7 with the intention to switch away from d-sub to DVI , the card work in bio and when driver be not install , but when you install driver the DVI port fail , unfortunately i cant return it because the boss do not want to deal with shipping and replace it and take a mission critical machine down for the time it would take to get a replacement . note on this product , i be not in anyway say the seller be bad , and i will buy from he in the future , im just say this component be bad .