Hello and welcome to the forums
That means you can connect the HD 5870 up to 6 displays.
So by Six monitors display it means 6 monitors connected to each other(which is called Eyefinity)
Thank you for your quick reply!
Is there a schematic of the cabling or some tutorials(with pictures) how to perform those connections?
Is supported by ati 5870 eyefinity edition or ati 5870 simple ?