32Parameters 4-Ch 8-ChVideo FrameRate2048Kbps-6144Kbps,For 1080P: default setup is 4Mbps,max supports 6MbpsBit Stream Type Video stream/composite streamDual-Stream SupportAudioParametersEncodeStandardG.711A/G.711U/PCMAudio SamplingRate8KHz,16BitAudio Bit Rate 64KbpsVideo Port Analog VideoInput4-channel,BNC port 8-channel,BNC portNetwork VideoInputN/AVideo Output 1-channel VGA output,1-channel HDMI output (of the same video source),HDMI/ VGA video output at the same time.Loop Output N/AMatrix Output N/AAudio Port Audio Input 4-channel RCAAudio Output 1-channel RCABidirectionalTalk InputSupport (reuse the audio port)Record Record Mode Schedule record/manual record/MD record/Alarm recordRecordPlaybackMax 4-channel playback Max 8-channel playbackBackup Mode HDD, burner, USB device, network backupAlarm Alarm Input 4-channel alarm input 16-channel alarm inputAlarm Output 3-channel alarm outputHDD HDD Port 1 SATA port,does not support eSATA portOne HDDSpace4TCommunicationPortNetwork 1 RJ45 port, 100Mbps Ethernet portCommunication RS485 portUSB 2 USB portsOthers Power DC12VPowerConsumption≤30W(With power adapter, no HDD)WorkingTemperature-10℃-+55℃WorkingHumidity10%~90%Dimensions Mini 1U case,325mm(W)×245mm(D)×45mm(H)Weight 1.25KG(No HDD)InstallationModeDesk1.3.20 Econimic 720P (S2) Mini 1U SeriesParameters 4-Ch 8-Ch 16-ChSystem Main Processor Industrial embedded micro controllerOS Embedded LINUX