The HDD403ZS-4TB HD-SDI High Definition Industrial Grade Embedded Linux DVR provides always-on recording capability, with variable resolution 720P/1080P, image quality, image rate, and audio recording; all are adjustable per channel. This HDD403ZS has several recording modes, including schedule, motion, alarm and panic button recording, each with individually adjustable settings per channel and per motion. The HDD403ZS have advanced H.264 network Video server for full Remote Viewing and operation, data archiving features for Backup, along with a handheld IR Remote Control, USB mouse Control and touch screen support. The HDD403ZS boasts a large storage capacity, supporting up to One 6TB hard drives (see box contains). H.264 compression reduces HDD consumption, yet allows for excellent image reproduction, at any resolution. The powerful user friendly GUI ties it all together with a simple to use menu and strong admin features. Built-in zoom up to 5X live and on playback with playback filter for full control and clarity Recording. HDMI out at Full HD 1080P, VGA out at Full HD 1080P, BNC Spot or BNC Main output for total of Three displays. 4 audio channels allow you to listen, record and playback audio with video over the internet. Dual processer and large memory allows for dual stream for 100% independent Remote view accounts and live operation with 120 FPS H.264 network server. Backup options available through Network or USB 2.0 Port. This DVR will Support Cameras up To 2800TVL/3MP 1080P. Smart phone support on Windows mobile, Android and I-phone/I-pad via our Free downloadable App SOcatch for live view and playback as well as Audio streaming and PTZ control all on your smart phone. Box contains: 4CH DVR Unit, 12VDC Power Supply, and Power Cable, Remote, USB optical mouse, User Manual/Software CD, Quick start guide and RCA to BNC Adapter for use with TV input. 4000GB (4TB) Hard Drive is installed.