| Model | DH-HCVR7204A-S3 | DH-HCVR7208A-S3 | DH-HCVR7216A-S3 |
| System |
| Main Processor | Embedded processor |
| Operating System | Embedded LINUX |
| Video |
| Input | 4 channel, BNC | 8 channel, BNC | 16 channel, BNC |
| Standard | Analog | NTSC/PAL |
| HDCVI | 1080P/720P HDCVI Camera |
| IP | 4+2 up to 5Mp | 8+4 up to 5Mp | 16+8 up to 5Mp |
| 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 | 1/4/6 | 1/4/8/9 | 1/4/8/9/16 |
| 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 |
| Record Rate | Main Stream: | 1080P/720P/960H/D1/HD1/BCIF/CIF/QCIF (1~25/30fps) |
| Extra Stream | D1/CIF/QCIF(1~25/30fps) |
| Bit Rate | 1~6144Kb/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, Snapshot, Buzzer & Screen tips |
| Video Detection | Motion Detection, MD Zones: 396(22×18), Video Loss & Camera Blank |
| Alarm Input | 8 channel | 16 channel | 16 channel |
| Relay Output | 3 channel |
Intelligent Video
(Optional) | Tripwire, Intrusion, Abandoned/Missing, Face Detection |
| Playback & Backup |
| Sync Playback | 1/4 | 1/4/9 | 1/4/9/16 |
| 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/Internal SATA burner/Network |
| Network |
| Ethernet | RJ-45 port (10/100M) | RJ-45 port (10/100M/1000M) | RJ-45 port (10/100M/1000M) |
| Network 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 12TB |
| Auxiliary Interface |
| USB Interface | 2 ports(1 Rear), USB2.0 | 2 ports (1 Rear USB3.0, 1 Front USB2.0) |
| RS485 | 1 port, For PTZ control |
| General |
| Power Supply | DC12V/4A | 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) |
