... ,FTP,DNS,DDNS,NTP,UPNP,EMAIL NEW Support 1 HDD 4CH standalone nvr Features: 1.4ch D1/CIF/QCIF ... IPiPhone,Windows Mobile, BlackBerry,Symbian, Android 5.Support 1 HDD Specification Model AP-H5504SystemMain ProcessorHigh performance embedded microprocessorOperating SystemEmbedded ... ; support 18kinds of PTZ protocolsUSB2 x USB2.0HDD1 x SATA HDD,Max 1 x 2TOthersPower Supply12V/4ADimension310(L)* 285(W)* ...