... bandwidth bottlenecks.4.Support all kinds of mobile monitoring(iPhone, Windows Mobile, BlackBerry, Symbian, Android).5.Enclosed with DNS function (ARSP ... ,make surveillance more easy and relaxed. And also provide DDNS server such as 3322,dyndns,oray,myq-see,etc.6.Support ... protocolUSB InterfaceN/AOthersPower supply12V/2A external power supplyDimensions Digital Video Server/DVS/DVR