| Model | AT-NH-3316TD-1T/AT-NH-4316BD-F2 |
| System | Main chip | Hi3521A |
| OS | LINUX |
| System Resources | Multi-channel Realtime recording, Multi-channel playback, Multi-channel network operation, USB Backup |
| Interface | Operation menu | 16-bit true color graphical menu interface, mouse operation supported |
| Display | 1/4/8/9/16 display（take the pure coaxial input mode as an example） |
| Video | Format | H.264 |
| Output | VGA、HDMI |
| Preview | 16*1080N |
| Recode | 16*1080N@12fps/16*960H/8*1080N |
| Decord | 16*1080N@12fps/8*960H/8*1080N |
| Multi-mode Intput | AHD：16*1080N；8*1080N;16*960H; |
| Hybrid： 8*1080N（CVBS）+8*960P（IP） |
| NVR：8*1080P+8*960P; 4*3M ;4*5M |
| Motion detect | Each view window can set 192（16*12）detection area,can set multi-level sensitivity (only for local channel) |
| Audio | Audio | G.711A |
| Intercom | Support |
| Recorind and Playback | Recording mode | Manual、Alarm、Motion Detect、Timer |
| Local playback | 16 Channel（when Analog mode） |
| Video search | Time, Date,Event,Channel search |
| Storage and Backup | Storage | Local HDD, Network |
| Backup | Network back, USB Drive, HDD |
| Port | Video Input | 16 * BNC |
| Video Output | 1 * VGA，1 * HDMI |
| Spot Monitor | NO |
| Audio Input | 2 * RCA（Max: 6 channels） |
| Audio Output | 1 * RCA |
| Alarm Input | Optional（Max: 4 channels） |
| Alarm Output | Optional（can be 1 channel） |
| Network port | RJ45 10M/100M |
| PTZ Control | 1 * RS485； Support multipal PTZ Contract |
| USB port | 2 * USB Port |
| HDD Port | 2 * SATA port（Up to 6T for each one） |
| Others | Power | 2*HDD: 12V/5A |
| Power consumption | Less than 15W（no HDD） |
| Working temperature | 0℃—+55℃ |
| Working humidity | 10%—90% |
| Atmospheric pressure | 86kpa—106kpa |
| Size | 235mm*90mm |
| Weight | 279g |
