* MDR-4490: 4ch DVR / MDR-8490: 8ch DVR / MDR-16690: 16ch DVR

* H.264 Compression (High Profile), Pentaplex

* 1 HDMI(1080p), 1 VGA(1080p), 1 Multi Spot Output

* 2ch Alarm In / 1ch Alarm Out, 1ch Audio In / 1ch Audio Out

* Dual Stream : Optimized network transfer speed

* Drag & Drop Zoom by Mouse at Live View and Playback

* 3rd Party DDNS Support (NO-IP, DynDNS), UPnP Support

* Mobile Viewer : iPad / iPhone / Android / Blackberry

* Professional CMS (Up to 512ch by Dual Monitor) Supported