Features:  • Support HDCVI/Analog/IP Video input • Up to 4 cameras with 1080p realtime preview • H.264 dual-stream video compression • HCVR7204: All channel 1080P realtime recording • 4 channel synchronous realtime playback, GRID interface & smart search • HDMI/VGA simultaneous video output • Support 2 SATA HDDs up to 8TB, 2 USB2.0 • 3D intelligent positioning with Dahua PTZ dome camera • ONVIF Version 2.3 conformance • Support Multi-brand tīkla cameras: Dahua, Arecont Vision, AXIS, Bosch, Brickcom, Canon, CP Plus, Dynacolor, Honeywell, Panasonic, Pelco, Samsung, Sanyo, Sony, Videosec, Vivotech , and etc. • Multiple tīkla monitoring: Web viewer, CMS(DSS/Smart PSS)&Smart Phone(DMSS)  Technical Specifications:  System • Main Processor Embedded processor • Operating System Embedded LINUX Video • Input 4 channel, BNC  • Standard HDCVI 1080P/720P HDCVI Camera Analog NTSC/ PAL • IP Support 2ch 1080P/720P IP Camera Audio • Input 4 channel, RCA • Output 1 channel, RCA • Two-way Talk Reuse audio input/output channel 1 Display • Interface 1 HDMI, 1 VGA • Resolution 1920× 1080, 1280× 1024, 1280× 720, 1024× 768 • Display Split 1/4  • Privacy Masking 4 rectangular zones (each camera) • OSD Camera title, Time, Video loss, Camera lock, Motion detection, Recording Recording • Video/Audio Compression H.264/G.711 • Resolution 1080P(1920× 1080)/720P(1280× 720)/960H(960× 576/960× 480)/D1/4CIF(704× 576/704× 480)/CIF(352× 288/352× 240)/QCIF(176× 144/176× 120) • Record Rate Main Stream: 1080P/720P/960H/D1/HD1/2CIF/CIF(1~25/30fps) • Extra Stream CIF/QCIF(1~25/30fps),D1(1~12/15fps) • Bit Rate 48~6144Kb/s • Record Mode Manual, Schedule(Regular(Continuous), MD), Stop • Record Interval 1~60 min (default: 60 min), Pre-record: 1~30 sec, Post-record: 10~300 sec Video Detection & Alarm • Trigger Events Recording, PTZ, Tour, Alarm out, Video Push, Email, FTP, Spot, Snapshot, Buzzer & Screen tips, Video Detection Motion Detection, MD Zones: 396(22× 18), Video Loss & Camera Blank • Alarm Input 4 channel  • Relay Output 3 channel Playback & Backup • Sync Playback 1/4  • Search Mode Time/Date, MD & Exact search (accurate to second) • Playback Functions Play, Pause, Stop, Rewind, Fast play, Slow play, Next file, Previous file, Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup, selection, Digital zoom • Backup Mode USB Device/Inernal SATA burner/tīkla tīkla • Ethernet RJ-45 port (10/100M/1000M) • tīkla Functions HTTP, IPv4/IPv6, TCP/IP, UPNP, RTSP, UDP, SMTP, NTP, DHCP, DNS, PPPOE, DDNS, FTP, IP Filter, SNMP, P2P • Max. User Access 128 users • Smart Phone iPhone, iPad, Android, Windows Phone Storage • Internal HDD 2 SATA ports, up to 8TB Auxiliary Interface • USB Interface 2 ports (1 Rear), USB2.0 • RS485 1 port, For PTZ control General • Power Supply DC12V/5A • Power Consumption 15W(without HDD) • Working Environment -10°C ~+55°C / 10%~90%RH / 86~106kpa • Dimension(W× D× H) 1U, 375mm× 285mm× 55mm • Weight 2.35KG(without HDD)