| Model | DH-DVR2104H-H |
| System |
| Main Processor | Embedded processor |
| Operating System | Embedded LINUX |
| Video |
| Input | 4 channel, BNC |
| Standard | NTSC(525Line, 60f/s), PAL(625Line, 50f/s) |
| Audio |
| Input | 1 channel, RCA |
| Output | 1 channel, RCA |
| Two-way Talk | Reuse audio input/output channel 1 |
| Display |
| Interface | 1 HDMI,1 VGA,1BNC |
| 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 | 960H(960x576/960x480)/D1(704x576/704x480)/2CIF(704×288/704×240)/CIF(352×288/352×240)/ QCIF(176×144/176×120) |
| Record Rate | Main Stream: | 960H/D1/HD1/2CIF/CIF (1~25/30fps) |
| Extra Stream | CIF/QCIF(1~25/30ps) |
| Bit Rate | 48~3072Kb/s |
| Record Mode | Manual, Schedule(Regular(Continuous), MD), Stop |
| Record Interval | 1~120 min (default: 60 min), Pre-record: 1~30 sec, Post-record: 10~300 sec |
| Video Detection |
| Trigger Events | Recording, Tour, Video Push, Email, FTP, Buzzer & Screen tips |
| Video Detection | Motion Detection, MD Zones: 396(22×18), Video Loss & Camera Blank |
| 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 / Network |
| Network |
| Ethernet | RJ-45 port (10/100M) |
| Network Functions | HTTP, IPv4/IPv6, TCP/IP, UPNP, RTSP, UDP, SMTP, NTP, DHCP, DNS, PPPOE, DDNS, FTP, IP Filter |
| Max. User Access | 128 users |
| Smart Phone | iPhone, iPad, Android, Windows Phone |
| Storage |
| Internal HDD | 1 SATA port, up to 4TB |
| Auxiliary Interface |
| USB Interface | 2 ports (1 Rear), USB2.0 |
| RS485 | PTZ control |
| General |
| Power Supply | DC12V/2A |
| Power Consumption | 10W(without HDD) |
| Working Environment | -10 ~+55°C / 10~90%RH / 86~106kpa |
| Dimension(W×D×H) | Mini 1U, 325mm×245mm×45mm |
| Weight | 1.5KG(without HDD) |