| model | ahb7004t-g-v4 |
| system | main processor | hi3531a |
| interface | operatinginterface | support 16-bit true color graphical menu interface andmouse operation |
| preview | 1/4 |
| video | codec | h.264 （quasi h.265）/h.264 |
| monitor quality | vga(1080p at most);hdmi(4k at most) |
| preview ability | 4*4m |
| encode ability | 4*4m(ahd)/ 4*3m(ahd)/4*1080p(5 in 1) |
| decode ability | 4*4m(ahd) / 4*3m(ahd)/ 4*1080p(5 in 1) |
| multi-modeinput | analog: 4*4m；4*3m；hybrid: 4*3m（analog） 4*3m（network）network:8*3m; 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 & playback | record mode | manual>alarm>motion detection>timing |
| local playback | 4ch(analog input mode) |
| search mode | search by time, calendar, event, channel |
| storage & backup | video storage | hdd, network |
| backup mode | network, usb hard disk, usb burner, sata burner |
| external interface | video input | 4ch bnc |
| video output | 1ch vga,1ch hdmi |
| loop vout | n/a |
| audio input | 4ch rca |
| audio output | 1ch rca |
| alarm input | 0(can be extended to 4ch) |
| alarm output | 0(can be extended to 1ch) |
| network interface | rj45 10m/100m |
| ptz control | 1*rs485, support kinds of ptz protocols |
| usb | 2* usb 2.0 ports |
| hdd | 2*sata ports (max 8tb/per) |
| wireless | 3g, wifi (extend via usb) |
| general | power supply | 12v/4a |
| power consumption | <15w (without hdd) |
| working environment | temperature:0℃— 55℃，humidity:10%—90%，atm:86kpa—106kpa |
| dimension | 200mm*78mm |
| weight | 171g |