Stand Alone DVR

TDI-S104 ( Triplex Stand Alone 4CH DVR System ) Triplex Operation: Record/Playback/Network Audio Input/ Output:1 Ch Support USB Backup & Remote Viewer 1:1 Backup PTZ Control from DVR & Remote Viewer Compression Algorithm: Modified M-JPEG OS:Embedded Linux Specification     TDI-S116 ( Triplex Stand Alone 16CH DVR System  ) Triplex Operation: Record/Playback/Network Audio Input/ Output:1 Ch Support USB Backup & Remote Viewer 1:1 Backup PTZ Control from DVR & Remote Viewer Compression Algorithm: Modified M-JPEG OS:Embedded Linux Specification         New  MPEG 4 DVR   TDI-MP N Series ( Triplex Stand Alone 4/8/16CH DVR System  ) Triplex Operation: Record/Playback/Network Support HDD Mirror Function Support USB, CD-RW Build-In (Remove HDD Exchangeable)  Support Keyboard, Mouse, and IR Remote Compression Algorithm: MPEG 4 OS:Embedded Linux PDF Download     TDI-S516 ( Duplex Stand Alone 16-ch DVR ) Stand Alone, High Quality Compression Duplex and Remote Access Capability Real Time Monitoring Watermark Support for Authentication of Images Support Scheduling Backup Specification