SPECS
Video/Audio Input
Audio Input:    
1-ch
Video Compression:    
H.264,H.264+
Analog and HD-TVI video input:    
8-ch,BNC interface (1.0Vp-p, 75 Ω)connection
Supported camera types:    
Support HDTVI input: 3 MP, 1080p/25Hz, 1080p/30Hz, 720p/25Hz, 720p/30Hz, 720P/50Hz, 720p/60Hz
Note: The 3 MP signal input is only available for the first channel of DS-7204HQHI-F1/N, the first 2 channels of DS-7208HQHI-F1/N, and the first 4 channels of DS-7216HQHI-F1/N.
Support AHD input: 1080p/25Hz, 1080p/30Hz, 720p/25Hz, 720p/30Hz
support CVBS input
IP Video Input:    
2-ch Up to 2MP resolution
Video Input Interface:    
BNC (1.0 Vp-p, 75Ω)
Audio Compression:    
G.711u
Audio Input Interface:    
RCA (2.0 Vp-p, 1 kΩ)
Two-way Audio:    
1-ch, RCA (2.0 Vp-p, 1 KΩ) (using audio input)
Video/Audio Output
CVBS Output:    
1-ch,BNC(1.0Vp-p,75Ω),resolution:PAL:704x576,NTSC:704x480
HDMI/VGA Output:    
1920 × 1080 / 60 Hz,1280 × 1024 / 60 Hz, 1280 × 720 / 60 Hz, 1024 × 768 / 60 Hz
Recording resolution:    
When 1080p Lite mode not enabled: 3 MP/1080p/720p/VGA/WD1/4CIF/CIF;
When 1080p Lite mode enabled: 3 MP/1080p lite/720p/VGA/WD1/4CIF/CIF
Frame Rate:    
Main stream:
When 1080p Lite mode not enabled: 
For 3 MP stream access: 3 MP/1080p/720p/VGA/WD1/4CIF/CIF@12fps
For 1080p stream access: 1080p/720p@12fps; VGA/WD1/4CIF/CIF@25fps (P)/30fps (N)
For 720p stream access: 720p/VGA/WD1/4CIF/CIF@25fps (P)/30fps (N)
When 1080p Lite mode enabled: 
3 MP/1080p lite/720p/VGA/WD1/4CIF/CIF@25fps (P)/30fps (N)
Video Bit Rate:    
32 Kbps-6 Mbps
Stream Type:    
Video/Video&Audio
Audio Output:    
1-ch RCA(Linear, 1kΩ)
Audio Bit Rate:    
64kbps
Dual Stream:    
Support
Playback Resolution:    
3 MP/1080p/720p/VGA/WD1/4CIF/CIF
Synchronous Playback:    
8-ch
Network management
Remote connections:    
128
Network protocols:    
TCP/IP, PPPoE, DHCP,Hik Cloud P2P, DNS, DDNS, NTP, SADP, SMTP, NFS, iSCSI, UPnP?, HTTPS,ONVIF
Hard Disk Driver
Interface Type:    
1 SATA Interface
Capacity:    
Up to 6 TB capacity for each disk
External Interface
Network Interface:    
1; 10M / 100M self-adaptive Ethernet interface
USB Interface:    
2 USB 2.0 Interfaces
Serial Interface:    
1; standard RS-485 serial interface, half-duplex
General
Power Supply:    
12V DC
Consumption:    
≤ 20W(without hard disks)
Working Temperature:    
-10 oC ~+55 oC (14 oF ~ 131 oF)
Working Humidity:    
10% ~ 90%
Chassis:    
Standalone 1U chassis
Dimensions:    
315 × 242 × 45 mm 
(12.4 × 9.5 × 1.8 inch)
Weight:    
≤2 kg(4.4lb)