| System | Processor | Hi3520D V300 |
| Video | Codec | H.264+ |
| Encode | 4*[email protected]/ 4*[email protected]/4*[email protected](5 in 1)/4*[email protected](5 in 1) |
| Decode | 4*[email protected]/ 4*[email protected]/4*[email protected](5 in 1)/4*[email protected](5 in 1) |
| Playback | 4ch |
| Audio | Compression | G.711a |
| Intercom | Support |
| Management | Record mode | Manual>Alarm>Motion detection>Timing |
| Inquire mode | Inquire by Time/Calendar/Event/Channel |
| Storage Mode | HDD Storage, Network Storage |
| Backup | Network, USB, SATA |
| Inerface | Video input | 4*BNC(Support Coaxitron) |
| HDMI output | 1*HDMI |
| VGA output | 1*VGA |
| Audio I/O | 4\1 |
| Alarm I/O | Optional |
| Ethernet port | 1*10/100Mbps Ethernet port, RJ45 port |
| PTZ contorl | 1*RS485, Support for multiple PTZ protocol |
| USB port | 2*USB2.0 ports |
| HDD | 1*SATA interface (Up to 6TB) |
| General | Temperature | .-20℃- + 55℃ |
| Humidity | 10% -90% RH |
| Power supply | 12V/2A |
