4K
By Hikvision

Hikvision DS-7732NXI-K4/16P 32-Channel AcuSense 4K NVR with 16-Port PoE

SKU: DS-7732NXI-K4_16P
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$591.00

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(HDD not included)

  • 32-channel recording — connect up to 32 IP cameras to one unit
  • Built-in 16-port PoE switch — power cameras directly, no extra switch needed
  • AI face detection and perimeter protection on 4 channels
  • 4 HDD bays support up to 64TB total storage for extended recording
  • Smart H.265+ compression saves up to 75% storage vs H.264
  • Free remote viewing via Hik-Connect app on any device
  • Works with all ONVIF-compliant IP cameras for flexible setup
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Details

32-Channel AcuSense NVR with 16-Port PoE

The Hikvision DS-7732NXI-K4/16P is a 32-channel 1.5U AcuSense network video recorder with 16 independent PoE interfaces. It supports up to 32 IP camera inputs and provides up to 256 Mbps incoming bandwidth. The integrated PoE ports support IEEE 802.3af/at, allowing compatible cameras to be connected with video, data, and power through a single network cable.

AcuSense Intelligent Video Analysis

The NVR supports Hikvision AcuSense functions, including human and vehicle recognition, Motion Detection 2.0, facial recognition, perimeter protection, smart search, and smart playback. All channels support Motion Detection 2.0. Device-based analysis supports human and vehicle recognition on up to 4MP video across all channels, while perimeter protection supports 2-channel 4MP video analysis.

Flexible Decoding and 4K Display

When AI functions are disabled, the recorder supports decoding combinations of 2-channel 12MP, 3-channel 8MP, 6-channel 4MP, or 12-channel 1080p video at 30 fps. When AI is enabled, the specified decoding capacity changes to 1-channel 12MP, 2-channel 8MP, 4-channel 4MP, or 8-channel 1080p at 30 fps. HDMI output supports up to 4K resolution at 30 Hz, while VGA output supports up to 1920 × 1080 at 60 Hz.

Storage and System Connectivity

The DS-7732NXI-K4/16P provides 4 SATA interfaces for hard drives, with support for up to 10 TB per HDD. It supports 16-channel synchronous playback, H.265+/H.265/H.264+/H.264 video formats, and dual-stream recording. Network integration includes one self-adaptive Gigabit Ethernet interface, ONVIF Profile S/G, SDK, ISAPI, Hik-Connect, and plug-in-free web access.

Specification

Perimeter Protection
By Device 2-ch, 4 MP (HD network camera, H.264/H.265) video analysis for human and vehicle recognition to reduce false alarm
By Camera All channels
Target Recognition
Facial Detection and Analytics Face picture comparison, human face capture, face picture search
Face Picture LibraryUp to 16 face picture libraries, with up to 20,000 face pictures in total (each picture ≤ 4 MB, total capacity ≤ 1 GB)
Facial Detection and Analytics Performance 1-ch, 8 MP
Face Picture Comparison 4-ch
Motion Detection 2.0
By Device All channels, up to 4 MP (when enhanced SVC mode is enabled, up to 8 MP) video analysis for human and vehicle recognition to reduce false alarm
By Camera All channels
Video and Audio
IP Video Input 32-ch
Incoming Bandwidth 256 Mbps
Outgoing Bandwidth 160 Mbps
HDMI Output 1-ch, 4K (3840 × 2160)/30Hz, 2K (2560 × 1440)/60Hz, 1920 × 1080/60Hz, 1600 × 1200/60Hz, 1280 × 1024/60Hz, 1280 × 720/60Hz, 1024 × 768/60Hz
VGA Output 1-ch, 1920 × 1080/60Hz, 1280 × 1024/60Hz, 1280 × 720/60Hz
Video Output Mode HDMI/VGA independent output
CVBS Output N/A
Audio Output 1-ch, RCA (Linear, 1 KΩ)
Two-Way Audio 1-ch, RCA (2.0 Vp-p, 1 KΩ, using the audio input )
Decoding
Decoding Format H.265/H.265+/H.264+/H.264
Recording Resolution 12 MP/8 MP/6 MP/5 MP/4 MP/3 MP/1080p/UXGA/ 720p/VGA/4CIF/DCIF/2CIF/CIF/QCIF
Synchronous playback 16-ch
Decoding Capability AI on: 1-ch@12 MP (30 fps)/2-ch@8 MP (30 fps)/4-ch@4 MP (30 fps)/8-ch@1080p (30 fps) AI off: 2-ch@12 MP (30 fps)/3-ch@8 MP (30 fps)/6-ch@4 MP (30 fps)/12-ch@1080p (30 fps) Smooth Playback (HC) ON & AI ON: 1-ch@12 MP (30 fps)/1-ch@8 MP (30 fps)/3-ch@4 MP (30 fps)/7-ch@1080p (30 fps) Smooth Playback (HC) ON & AI OFF: 1-ch@12 MP (30 fps)/2-ch@8 MP (30 fps)/5-ch@4 MP (30 fps)/11-ch@1080p (30 fps)
Stream Type Video, Video & Audio
Audio Compression G.711ulaw/G.711alaw/G.722/G.726/AAC
Network
Remote Connection 128
API ONVIF (profile S/G); SDK; ISAPI
Compatible BrowserIE 11, Chrome V57, Firefox V52, Safari V12, Edge V89, or above version
Network Protocol TCP/IP, DHCP, IPv4, IPv6, DNS, DDNS, NTP, RTSP, SADP, SMTP, SNMP, NFS, iSCSI, ISUP, UPnP™, HTTP, HTTPS
Network Interface 1 RJ-45 10/100/1000 Mbps self-adaptive Ethernet interface
PoE
Interface 16
Power ≤ 200 W
Standard IEEE 802.3af/at
Auxiliary Interface
SATA 4 SATA interfaces
Capacity Up to 16 TB capacity for each HDD
Serial Interface 2 RS-485 (half-duplex), 1 RS-232
Alarm In/Out 16/4 (16/9 is optional)
USB Interface Front panel: 2 × USB 2.0; Rear panel: 1 × USB 3.0
Ctrl 12VN/A (optional to support)
DC 12VN/A (optional to support)
General
GUI Language English, Russian, Bulgarian, Hungarian, Greek, German, Italian, Czech, Slovak, French, Polish, Dutch, Portuguese, Spanish, Romanian, Turkish, Japanese, Danish, Swedish Language, Norwegian, Finnish, Korean, Traditional Chinese, Thai, Estonian, Vietnamese, Croatian, Slovenian, Serbian, Latvian, Lithuanian, Uzbek, Kazakh, Arabic, Ukrainian, Kyrgyz , Brazilian Portuguese, Indonesian
Power Supply100 to 240 VAC, 50 to 60Hz
Consumption ≤ 20 W (without HDD and PoE off)
Working Temperature -10 °C to 55 °C (14 °F to 131 °F)
Working Humidity 10 to 90 %
Dimension (W × D × H)445 × 400 × 75 mm ( 17.5"× 15.7" × 3.0")
≤ 5 kg (without HDD, 11 lb.)
Certification
FCCPart 15 Subpart B, ANSI C63.4-2014
CEEN 55032: 2015, EN 61000-3-2, EN 61000-3-3, EN 50130-4, EN 55035: 2017
Obtained CertificationCE, FCC, IC, CB, KC, UL, Rohs, Reach, WEEE, RCM, UKCA, LOA, BIS \*Product performance is based on testing in a controlled environment. Your results may vary due to several external and environmental factors.

FAQ

How many cameras can the DS-7732NXI-K4/16P support?

The NVR supports up to 32 IP camera inputs and provides 256 Mbps incoming bandwidth. It also includes 16 independent PoE ports for compatible camera connections. Actual performance depends on camera resolution, frame rate, codec, recording settings, and network configuration.
What decoding capacity does the NVR provide?

When AI is disabled, the NVR supports 2-channel 12MP, 3-channel 8MP, 6-channel 4MP, or 12-channel 1080p decoding at 30 fps. When AI is enabled, the specified capacity is 1-channel 12MP, 2-channel 8MP, 4-channel 4MP, or 8-channel 1080p at 30 fps.
Does the NVR support 4K display output?

Yes. The HDMI output supports up to 4K resolution at 30 Hz. The VGA output supports up to 1920 × 1080 at 60 Hz. HDMI and VGA provide independent video output according to the specified display configuration.
Does the NVR support facial recognition and ANPR?

Yes. The NVR supports facial recognition and compatible camera-based functions such as ANPR, VCA, and perimeter protection. Device-based facial recognition performance includes 1-channel facial recognition for video stream or 4-channel facial recognition for face pictures.