Powerful remote control functions via IE browser 4 software compression technology/ H.264 hardware compression technology, and provides configurable display/recording frame rates (from 7.5 fps to 30 fps) and configurable resolutions (from CIF to D1) to meet various user requirements. The system supports up to 3 hard disk drives and external storage devices can be added for extra video data storage capacity. Embedded system design is used to prevent virus attack and provide the highest stability. Easy installation, simple operation, high scalability, advanced functions and strong remote management support make PVS-640 series the right choice for any security-critical environment.