... Win2000/XP/Vista CIF Software dvr cardDVR CardComputer capture cardNone realtime recording dvr cardH.264 Optimized, Techwell 6805 Chip16CH Video Input ... Graphical InterfaceFree Software UpgradeableCompatible with Windows2000/XP/Vista2PCS Techwell 6805 Cards in one system to build 32chBasic functions ... PC to build 32 channel monitoring, can insert other Techwell 6805 cards, say DS-6104B, DS-6204B, DS ...