Video/Audio input
Video Compression:    |    H.264/MPEG4/MPEG2/MJPEG
Video input:    |    16-ch,
BNC (1.0 Vp-p, 75 Ω)
Audio compression:    |    G.711
Audio input:    |    16-ch,
Line input interface 
(2.0 Vp-p, 1 kΩ)
Two-way audio:    |    1-ch, 3.5 mm audio (2.0 Vp-p, 1 kΩ)
Video/Audio output
Audio output:    |    1-ch, 3.5mm interface (Linear, 600 Ω)
Encoding resolution:    |    WD1/4CIF/2CIF/CIF/QCIF
Frame rate:    |    H.264/MPEG4/MPEG2 encoding: 25 fps (P) / 30 fps (N); MJPEG encoding: 15 fps
Video bit rate:    |    32 Kbps ~ 3072 Kbps, or user defined (Max. 8192 Mbps)
Audio bit rate:    |    64 Kbps
Dual Stream:    |    Support
Stream Type:    |    Video/ Video&Audio
Network protocols
Protocols Supported:    |    IPv4/v6, HTTP, HTTPS, QoS layer3 DiffServ, FTP, SMTP, Bonjour, UPnPTM,
SNMPv1/v2c/v3(MIB-II), DNS, DynDNS, hkDDNS, NTP, RTSP, RTP/RTCP,TCP, UDP, IGMP, ICMP,DHCP, ARP, SOCKSv4/v5, PSIA, OnVIF, HIKCGI, netFilter
Data storage
Type:    |    NAS, IPSAN
Capacity:    |    Up to 4 TB capacity for each disk
External interface
Network interface:    |    1 RJ-45 10 M / 100 M /1000 Mbps adaptive
Ethernet interface
Serial interface:    |    1 RS-485, 1 RS-232
Alarm in:    |    16
Alarm out:    |    4
General
Power supply:    |    12 VDC
Consumption:    |    ≤ 22W
Working temperature:    |    -10°C~+55°C(14°F~131°F)
Working humidity:    |    10%~90%
Dimension(W×D×H):    |    440 × 45 × 274mm
Weight(without HDD):    |    ≤ 4 Kg