Video/Audio Input
Audio Input:	1-ch
Video Compression:	H.265 Pro+/H.265 Pro/H.265/H.264+/H.264
Analog and HD-TVI video input:	24-ch,BNC interface (1.0Vp-p, 75 Ω)connection
Supported camera types:	Support HDTVI input: 1080p25, 1080p30, 720p25, 720p30 Support AHD input: 1080p25, 1080p30, 720p25, 720p30 Support CVI input: 1080p25, 1080p30, 720p25, 720p30 Support CVBS input
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 the 1st channel of audio input)

Video/Audio Output
CVBS Output:	1-ch,BNC(1.0Vp-p,75Ω),resolution:PAL:704x576,NTSC:704x480
HDMI/VGA Output:	HDMI: 1-ch,4K(3840×2160)/30Hz,2K(2560×1440)/60Hz, 1920×1080/60Hz, 1280×1024/60Hz,1280×720/60Hz,1024 ×768/60Hz VGA:1-ch,2K(2560×1440)/60Hz,1920×1080/60Hz,1280×1024/60Hz,1280×720/60Hz,1024×768/60Hz
Recording resolution:	1080p/720p/VGA/WD1/4CIF/CIF
Frame Rate:	Main stream: For 1080p stream access: 1080p lite/720p lite/WD1/4CIF/VGA@15fps; CIF@25fps (P)/30fps (N) For 720p stream access: 720p/WD1/4CIF/VGA@15fps; CIF@25fps (P)/30fps (N) For standard definition stream access: WD1/4CIF/VGA/CIF@25fps (P)/30fps (N) Sub-stream: For 1080p and 720p stream access: CIF/QVGA@15fps For standard definition stream access: CIF/QVGA@25fps (P)/30fps (N)
Video Bit Rate:	32 Kbps ~ 4 Mbps
Stream Type:	Video/Video&Audio
Two-way Audio:	1-ch, RCA (2.0 Vp-p, 1 kΩ) (using the audio input)
Audio Output:	1-ch RCA(Linear, 1kΩ)
Audio Bit Rate:	64kbps
Dual Stream:	Support
Synchronous Playback:	16-ch

Network management
Remote connections:	128
Network protocols:	TCP/IP, PPPoE, DHCP, Hik-Connect, DNS, DDNS, NTP, SADP, NFS, iSCSI, UPnP™, HTTPS, ONVIF

Hard Disk Driver
Interface Type:	2 SATA Interfaces
Capacity:	Up to 10 TB capacity for each disk

External Interface
Network Interface:	1; 10M / 100M / 1000M self-adaptive Ethernet interface
USB Interface:	1 USB 2.0 Interface & 1 USB 3.0 Interface