... . H.264 Standalone DVR 2. Support SATA HardDisk,Mouse,USB*2,network 3. Audio, RS485, IE browse,15 languages 4.HDD,alarm H ... .264 main profile compression algorithm ideal for standalone DVR 4 channels Realtime full D1 recording ... management / IP search / network alarm center functions, support WEB client, standalone client and SDK With the sound system for the protection ...