4 Channel DVR 

Video / Audio Input
Video compression    H.265+/H.265/H.264+/H.264
Analog and HD-TVI Video Input    4CH; BNC interface (1.0Vp-p, 75 Ω)
HD-TVI Input    5MP, 4 MP, 1080p25, 1080p30, 720p25, 720p30, 720p50, 720p60
Note: The 3 MP signal input is only available for the first channel of DVR-204Q-K1, the first 2 channels of DVR-208Q-K1, and the first 4 channels of DVR-216Q-K1.
AHD Input    1080P, 720P
CVI Input    1080P, 720P
CVBS Input    Support
IP Video Input    1-ch Up to 5MP resolution
Audio compression    G.711u
Audio input / Two-way audio in    1-ch, RCA (2.0 Vp-p, 1 KΩ)
Video / Audio Output
HDMI / VGA output    1-ch, 1920 × 1080/60Hz, 1280 × 1024/60Hz, 1280 × 720/60Hz, 1024 × 768/60Hz
Encoding resolution    When 1080p Lite mode not enabled: 4MP lite/3 MP/1080p/720p/VGA/WD1/4CIF/CIF;
When 1080p Lite mode enabled: 1080p lite/720p/VGA/WD1/4CIF/CIF
Frame rate    Main stream:
When 1080p Lite mode not enabled:
For 5 MP stream access: 5 MP lite@15fps; 1080p lite/720p/WD1/4CIF/VGA/CIF@25fps (P)/30fps (N)
For 3 MP stream access: 3 MP/1080p/720p….@15fps
For 1080p stream access: 1080p/720p@15fps; VGA/WD1/…@25fps (P)/30fps (N)
For 720p stream access: 720p/VGA…@25fps (P)/30fps (N)
When 1080p Lite mode enabled:
For 5 MP stream access: 5 MP lite@15fps; 1080p lite/720p lite/WD1/4CIF/VGA/CIF@25fps (P)/30fps(N)
For 3 MP stream access: 3 MP/1080p lite/720p lite/WD1/4CIF/VGA/CIF@15fps
For 1080p stream access: 1080p lite/720p lite/WD1/4CIF/VGA/CIF@25fps (P)/30fps (N)
For 720p stream access: 720p/WD1/4CIF/VGA/CIF@25fps (P)/30fps (N)
Sub-stream:
WD1/4CIF/2CIF@12fps; CIF/QVGA/QCIF@25fps
Video bit rate    32 Kbps – 6 Mbps
Audio output    1-ch, RCA (Linear, 1KΩ)
Audio bit rate    64 Kbps
Dual-stream    Support
Stream type    Video, Video & Audio
Synchronous playback    4CH
Network Management
Remote Connections    32
Network Protocols    TCP/IP, PPPoE, DHCP, Hik-Connect, DNS, DDNS, NTP, SADP, NFS, iSCSI, UPnP™, HTTPS, ONVIF
Hard Disk
SATA    1 SATA interface
Capacity    Up to 6 TB capacity
External Interface
Network interface    1; 10M / 100M self-adaptive Ethernet interface
USB interface    Rear panel: 2 x USB2.0
General
Power supply    12v DC
Consumption    Max 8W
Working temperature    -10 °C ~ +55 °C
Working humidity    10% ~ 90%
Dimensions (W x D x H)    260 x 222 x 45 mm
Weight    Approx. 1Kg
Camera Specification
ACT750F
Image Sensor    5 MP CMOS
Signal System    PAL/NTSC
Resolution    2560 (H) × 1944 (V)
Frame Rate    TVI: 5MP@20fps, 4MP@30fps, 4MP@25fps, 1080p@30fps, 1080p@25fps; CVI: 4MP@30fps, 4MP@25fps; AHD: 5MP@20fps, 4MP@30fps, 4MP@25fps; CVBS: PAL/NTSC
Min. illumination    0.0005 Lux @ (F1.0, AGC ON), 0 Lux with White Light
Shutter Time    PAL: 1/25 s to 1/50, 000 s; NTSC: 1/30 s to 1/50, 000 s
Lens    2.8 mm fixed lens
Horizontal Field of View    2.8 mm, horizontal FOV: 99.7°, vertical FOV: 72°, diagonal FOV: 139.8°
Lens Mount    M16
Strobe Light Alarm    Yes
WDR (Wide Dynamic Range)    ≥130 dB
Angle Adjustment    Pan: 0 to 360°, Tilt: 0 to 75°, Rotation: 0 to 360°
Menu
White Light    Auto/ Off
Image Mode    STD/HIGH-SAT
AGC    Yes
Day/Night Mode    Color
White Balance    Auto/Manual
AE (Auto Exposure) Mode    WDR/ BLC/ HLC/ Global/ HLS
Noise Reduction    3D DNR/2D DNR
Language    English
Function    Brightness, Sharpness, Mirror, Anti-Banding, Smart Light
Interface
Video Output    1 HD analog output
General
Operating Conditions    -40 °C to 60 °C (-40 °F to 140 °F), humidity 90% or less (non-condensing)
Power Supply    12 VDC ± 25% / PoC.af*You are recommended to use one power adapter to supply the power for one camera.
Power Consumption    Max. 4 W
Protection Level    IP67
Material    Main Body: Metal, Enclosure: Plastic
White Light Range    Up to 20 m
Communication    HIKVISION-C
Dimensions    Φ 109.82 mm × 85.56 mm (4.32″ × 3.37″)
Weight    Approx. 350 g ( 0.77 lb.)