Detailed Product DescriptionVideo Input:4 Channel Video InputAudio Input:4 CH Audio inputFps per Card120fps/NTSC, 100fps/PALChipset:CONEXANT 23881, 10-bit ADC with 3D comb filterDisplay Screen:1 / 4 / 6 / 9 / 10 / 13 / 16 / 24 Full ScreenColor Adjust: Adjustable Light, Contrast, Hue, Saturation by Individual CameraResolution: 160X120 / 240X180 / 320X240 / 352X288 / 480X360 / 640X480Record Mode:Continuous / Schedule Recording / Alarm TriggeringCompression: Enhanced MPEG4 / H.264 Format, Frame Size: .1K2.5KMulti-task:Monitoring / Recording / PTZ Control / Remote / BackupMotion Detect:16 Zone X Multi Area for each cameraStorage: HDD / VDRAM / CD-RW / DAT / MO / ZIP / RAID. Up to 24 drivesPTZ:RS422 / RS485 Controlled PTZ & Light / Power / WiperUser Right: Multi User with Personal User name/Password/User rights, Remote UsersO.S.: Windows 2000/XPWater Mark: Water Mark , Not Editable & Not ReplaceableNetwork: PSTN / ISDN / LAN / ADSL / InternetRemote: LAN & ADSL: Real Time In 320X240, PSTN: 5-25fps In QCIFIE Remote View: Remote Browse by MS Internet ExplorerRemote Control: Full Function Remote Control & Remote Audio TransmissionRemote Rec: Remote Playback, Remote Recording, & Emergency RecordingSpeed dome:Pelco-D / Pelco-P Protocols & SequenceE-map: electronic map that lays out the location of video camera (At Server)/ lays out the location of Server (At Client)Display Mask:Support Camera mask (Just not show on Screen), Password to Playback Recording FilesDuplex Voice: Server & Client can talk by microphoneAlarmI/Oport:Support 4ch Alarm signal input & 4ch Relay output