... , of which one can record speed4. Supporting 4 way real-time recording, with three solutions (CIF, HD1, D1). Also support ... -ch and CIF for 4-ch6. Multiple recording methods: boot recording, time recording, alarm recording, manual recording, etc. for freely optional7. 1TB Hard ... . With professional watch dog design, automatically detection when system crashing, so as to protect the video data securely ...