| Model | | 7504P-4K | 7508P-4K | 7516P-4K |
| System | Main processor | 8536D | 621Q |
| Operating system | Embedded LINUX operating system |
| System resource | Simultaneous multi-channel real-time recording, playback, network operation, USB backup |
| Interface | Operation interface | 16-bit true color graphic menu operation interface, support mouse operation |
| Display screen | 1/4 | 1/4/9 | 1/4/16/25 |
| Video | Video input (IP) | 4*4K | 8*4K | 16*4K |
| Video standards | PAL(625TVL,50f/s)；NTSC(525TVL,60f/s) |
| Video compression | H.265/H.264 |
| Display quality | 4K |
| Playback quality | 4K |
| Decode | 4K |
| Motion detection | Depend on camera |
| Audio | Audio compression | G711A |
| intercom | Unsupport |
| Record and playback | Record mode | Manual>Alarm>Video Detection>Continuous |
| Local playback | 2*4K | 2*4K | 1*4K, 2*5M, 4*4M |
| Search mode | search by Time/calendar/event/channel |
| Storage and back up | Record Storage | HDD/ network |
| Backup mode | Network backup, USB hard disk, USB burner, SATA burner |
| Interface | Video output | 1ch HDMI HD Output ,1CH VGA Output |
| Audio I/O | 0/1 |
| Alarm I/O | 0/0 |
| POE Standard | IEEE 802.3af |
| Network interface | 10M/100M Ethernet, 4 POE Output | 10M/100M Ethernet, 8 POE Output | 10M/100M Ethernet,16 POE Output |
| USB interface | 2*USB2.0 port |
| Hard disk | 1*SATA (Up to 8TB for each disk) |
| General | ONVIF | Available |
| Power supply | Input: 100V-240V 50-60 Hz Output: DC48V, 3A | Input: 100V-240V 50-60 HzOutput: DC48V, 3A | Input: 110V-240V 50-60 HzOutput: DC52V, 4.62A |
| Power Consumption | <10W(Without HDD) |
| Work environment | Temperature:0℃- ＋ 55℃ , Humidity:10% － 90%RH , Atm:86kpa － 106kp |
| Dimension | L255*W245*H45MM | L255*W245*H45MM | L440*W320*H45MM |
| Weight | 1.5KG | 1.5KG | 3.2KG |
