VHDCI connector Basically it allows 4 Digital monitors to be connected at once.
If you are useing 2 / 3 monitors though, its cheaper and more economical to simply purchase a modern card since they come with adapters in the box already. And are more then capable of driving two monitors.
As far as new cables shouldn't need any. Should be as simple as hooking DVI cables up to the back of the card.
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