... insert 4 cards in the same PC at most, form 16 channel real time monitoring, and can also support mix inserting mode ... ETHER9808, to form 12 channel monitoring.Multi screen monitoring, 1,4,9,16,25, 36 split Screen available, support ... chipset is recommendedAt least 128M of RAM (256M required for 16 cameras and above)At least 32M of RAM for display ...