Lower production cost, great advantage. DSS4004 = manager server+ stream media+ platform software+ OS. All In One/Integrated design, enable function according to need, flexible combination, wide application scope. UPnP, for deployment, take apart chassis, plug device to power, set IP, then you can use it. You do not need to debug the system and software, saving time. One-key upgrade under network connection. Seamless upgrade, store original data without loss. No need of transportation for maintenance.