Product SKU : AD-MDVR4SD
Brand : Advik
4 Camera (AHD or Analog) input DIN-Jack Connectors.
4 Pins: Video, Audio, Power, Ground).
Supports SD Card upto 64 GB.
Supports 1 touch USB Backup.

Specification
ideo Channel : 4Channel video + 4Channel Audio recording synchronously
Resolution : Support 4x720P(1280x720),4xD1(704x576),4xHD1(704x288), 4xCIF (352*288) Each channel is individually adjustable.
Image Quality : 0-7 levels, 0 is the highest level.
OSD : Overlays information such as date time and vehicle ID
Loop Rec : Support SD card loop recording, loop cover previous video
Record Mode : Timed recording, alarm trigger recording and manual recording
Preview : Support 1 channel and 4 channels preview. Support enlarge video image when alarm trigger and video rear view trigger;
Disk overwritten : Space pre-allocated Support disks overwritten function.
Video Search : Search video files anytime per day, type(ma)
Playback : Support 1 to 4 channels playback. Support forward and backward play at the speed of: x2,x4,x8,x16.Support alarm spot search and time search.
Support : SD Card Upto 64GB
Input : 8 channels electrical level alarm input for optional Alarm linkage recordingActive request the intercomOne- key phone calling functions,etc.
Output : Max support 2ch level output
PTZ Control : Support PeIco-D protocol 485 PTZ remote/local control,preset.
Serial Expand : Support LED Advertisement PanelOil SensorPOSBus Station BroadcasterCar OBD,ect. external devices.
G-Sensor : G-sensor,Record vehicle real-time status.
TTS Voice Broadcast : Support TTS voice broadcast function.
Network : Can expand WIFI module, support 801.2b/g/n, 801.2a/c
ON/OFF : System delay-time power on/off;
File System : DVR special file recording System Technology, Exclusive car record file system,space pre-aIIocate,4ch single file Record,cyclic covering; To avoid the storage of the media causes file fragments, with high reliability and high stability