| Item | Model | AVR-408 | AVR-808 | AVR-1608 |
| System | Main processor | Hi3520D V200 | Hi3520D V300 | Hi3521A |
| Interface | Preview | 1/4 | 1/4/8/9 | 1/4/8/9/16 |
| Video | Codec | H.264 |
| Monitor quality | VGA,HDMI:HD |
| Preview ability | 4*1080N | 8*1080N | 16*1080N |
| Encode ability | 4*1080N | 8*1080N@12fps/4*1080P@15fps | 16*1080N@12fps/16*960H/8*1080N |
| Decode ability | 1*1080N | 8*1080N@12fps/4*1080P@15fps | 16*1080N@12fps/8*960H/8*1080N |
| Multi-mode | analog: 4*1080N;4*720P;4*960H | analog: 8*1080N;4*1080P | analog:16*1080N;8*1080N;16*960H; |
| input | hybrid: 2*720P(analog)+2*720P(network); | hybrid: 2*1080P(analog)+2*1080P(network); | hybrid: 8*1080N(analog)+8*960P(network) |
| network:8*1080P;12*960P;8*720P; 4*1080P; 4*720P; 1*1080P | 4*1080N(analog)+4*960P(network) | network:8*1080P+8*960P; 4*3M ;4*5M |
| | network:16*1080P; 9*1080P;16*960P; 4*5M | |
| Motion Detection | Each screen can be set to 192 (16 * 12) detection areas; multi-level sensitivity |
| can be set (Limited local channel) |
| Audio | Audio compression | G.711A |
| Intercom | support |
| Record & | Record mode | manual>alarm>motion detection>timing |
| playback | Local Playback | 4ch(analog input mode) | 8ch(local input mode) | 16ch(analog input mode) |
| Search mode | Search by time, calendar, event, channel |
| Storage & | Video storage | HDD, network |
| backup | Backup mode | Network, USB hard disk, USB burner, SATA burner |
| External | Video input | 4ch BNC | 8ch BNC | 16ch BNC |
| Interface | Video output | 1ch VGA, 1ch HDMI |
| Loop Vout | N/A |
| Audio I/O | 4/1 | 4(Can be extended to 8ch)/1 | 2(6)/1 |
| Alarm I/O | 0(Can be extended to 4ch)/0(Can be extended to 1ch) |
| Network interface | RJ45 10M/100M self-adaption |
| PTZ control | 1*RS485, Support kinds of PTZ protocols |
| USB | 2* USB 2.0 ports |
| HDD | 1*SATA ports (Max 8TB/per) | 2*SATA ports (Max 8TB/per) |
| Wireless | 3G, WIFI (extend via USB) |
| General | Power supply | 12V/2A | 12V/3A |
| Power Consumption | <15W (without HDD) |
| Working environment | Temperature:0ºC-+55ºC,Humidity:10%-90%,Atm:86kpa-106kpa |
| Dimension | 256*220*42mm | 326*242*50mm |
| Weight | 0.75kgs (without HDD) | 1.35kgs (without HDD) |