The Swann PC DVR-4-Net PCI Card seamlessly turns your PC into a sophisticated digital video security monitoring system. The plug and play card and software allow you to observe and record 4 cameras simultaneously or add more cards to upgrade to 16 cameras. Other benefits include remote access via the web or network, motion detection with instant email notification, audio monitoring and fast display and recording times. It's never been easier to see what's happening, from anywhere in the world.