1. H.264 Standalone DVR 2. Support SATA HardDisk,Mouse,USB*2,network 3. Audio, ... ,alarm H.264 main profile compression algorithm ideal for standalone DVR 4 channels Realtime full D1 recording or 2 channels real ... , Raid function Powerful network software:built-in web server,multi-DVR client &SMS Networking access for remote live viewing,recording,playback ...