>Support HDCVI/Analog/IP Video input
 >H.264 dual-stream video compression
 >HCVR51A04/51A08/51A16HE-S3: All channel 1080N/720P realtime or 1080P non-realtime recording 
 >HDMI/VGA simultaneous video output
 >4/8/16 channel synchronous realtime playback, GRID interface & smart search
 >Support Multi-brand network cameras: Dahua, Arecont Vision, AXIS, Bosch, Brickcom, Canon, CP Plus, Dynacolor, Honeywell, Panasonic, Pelco, Samsung, Sanyo, Sony, Videosec, Vivotek and etc. 
 >ONVIF Version 2.4 conformance
 >Support 1 SATA HDD up to 6TB, 2 USB2.0(16CH 1 USB3.0)
 >3D intelligent positioning with Dahua PTZ dome camera
 >Multiple network monitoring: Web viewer, CMS(DSS/Smart PSS)&Smart Phone(DMSS)