Hikvision DS-7732NXI-K4 – 32-Channel AcuSense 4K NVR with AI Analytics, 12MP Recording, 256Mbps Incoming Bandwidth, 4 SATA Bays & 40TB Total HDD Support
Overview:
• The Hikvision DS-7732NXI-K4 is a professional 32-channel 1.5U K Series AcuSense 4K Network Video Recorder designed for large smart IP surveillance systems that require high camera capacity, advanced AI analytics, strong bandwidth performance, and long recording duration.
• It supports up to 32 IP camera inputs with up to 256Mbps incoming bandwidth and 160Mbps outgoing bandwidth.
• The NVR supports H.265+, H.265, H.264+, and H.264 video formats, helping reduce storage usage while maintaining high recording quality.
• Hikvision AcuSense technology helps minimize manual effort and reduce security costs by improving human and vehicle recognition accuracy.
• It supports all-channel Motion Detection 2.0, 2-channel video analysis for human and vehicle recognition, facial recognition, face picture comparison, perimeter protection, video structuralization, and VCA by camera.
• HDMI output supports up to 4K resolution, with independent HDMI and VGA output for flexible local monitoring.
• It includes 4 SATA interfaces supporting up to 10TB per HDD, giving up to 40TB total storage capacity for long recording duration.
Key Features:
• 32-Channel IP Camera Input: Supports up to 32 IP cameras.
• AcuSense Technology: Helps reduce false alarms and improve security operation efficiency.
• All-Channel Motion Detection 2.0: Supports human and vehicle recognition across all channels.
• 2-Channel Perimeter Protection by Device: Provides human and vehicle recognition to reduce false alarms.
• Facial Recognition: Supports 1-channel facial detection and analytics performance up to 8MP.
• Face Picture Comparison: Supports 4-channel face picture comparison alarm.
• Face Picture Library: Supports up to 16 face picture libraries with up to 20,000 face pictures in total.
• AI by Camera: Supports facial recognition, perimeter protection, video structuralization, throwing objects from building, Motion Detection 2.0, and VCA.
• 12MP Recording Resolution: Supports recording resolution up to 12MP.
• High Decoding Capacity: Supports up to 2-ch @ 12MP, 3-ch @ 8MP, 6-ch @ 4MP, or 12-ch @ 1080p when AI is off.
• H.265+ Compression: Reduces storage space by up to 75%.
• Secure Stream Transmission: Supports stream over TLS encryption technology.
• Independent HDMI/VGA Output: Provides flexible display output options.
• 4K HDMI Output: HDMI output supports up to 4K resolution.
• 4 SATA Interfaces: Supports up to 10TB per HDD, with up to 40TB total storage capacity.
• Dual Gigabit LAN: Includes 2 RJ45 10/100/1000Mbps self-adaptive Ethernet interfaces.
• Professional Interfaces: Supports RS-485, RS-232, alarm input/output, USB 2.0, and USB 3.0.
• Hik-Connect Support: Enables easy remote access and network management.
Technical Specifications:
• Brand: Hikvision
• Model: DS-7732NXI-K4
• Available Model: DS-7732NXI-K4
• Product Type: 32-Channel AcuSense 4K Network Video Recorder
• Series: 32-ch 1.5U K Series AcuSense 4K NVR
• IP Video Input: 32 channels
• Incoming Bandwidth: 256Mbps
• Outgoing Bandwidth: 160Mbps
• Video Compression: H.265, H.265+, H.264+, H.264
• Recording Resolution: 12MP / 8MP / 6MP / 5MP / 4MP / 3MP / 1080p / UXGA / 720p / VGA / 4CIF / DCIF / 2CIF / CIF / QCIF
• HDMI Output: 1 channel, 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 channel, 1920 × 1080 @ 60Hz, 1280 × 1024 @ 60Hz, 1280 × 720 @ 60Hz
• Video Output Mode: HDMI/VGA independent output
• CVBS Output: N/A
• Audio Output: 1 channel RCA
• Two-Way Audio: 1 channel RCA using audio input
• Synchronous Playback: 16 channels
• Decoding Capability with AI On: 1-ch @ 12MP 30fps / 2-ch @ 8MP 30fps / 4-ch @ 4MP 30fps / 8-ch @ 1080p 30fps
• Decoding Capability with AI Off: 2-ch @ 12MP 30fps / 3-ch @ 8MP 30fps / 6-ch @ 4MP 30fps / 12-ch @ 1080p 30fps
• Stream Type: Video, Video & Audio
• Audio Compression: G.711ulaw, G.711alaw, G.722, G.726, AAC
• AI by Device: Facial recognition, perimeter protection, Motion Detection 2.0
• AI by Camera: Facial recognition, perimeter protection, video structuralization, throwing objects from building, Motion Detection 2.0, VCA
• Facial Detection & Analytics: Face picture comparison, human face capture, face picture search
• Face Picture Library: Up to 16 libraries, up to 20,000 face pictures in total
• Facial Detection Performance: 1 channel, 8MP
• Face Picture Comparison: 4-channel face picture comparison alarm
• Motion Detection 2.0 by Device: All channels up to 4MP; up to 8MP when enhanced SVC mode is enabled
• Motion Detection 2.0 by Camera: All channels
• Perimeter Protection by Device: Up to 2 channels, 4MP video analysis for human and vehicle recognition
• Perimeter Protection by Camera: All channels
• Remote Connection: 128
• API: ONVIF Profile S/G, SDK, ISAPI
• Compatible Browser: IE11, Chrome V57, Firefox V52, Safari V12, Edge V89 or above
• Network Protocols: TCP/IP, DHCP, IPv4, IPv6, DNS, DDNS, NTP, RTSP, SADP, SMTP, SNMP, NFS, iSCSI, ISUP, UPnP, HTTP, HTTPS
• Network Interface: 2 × RJ45 10/100/1000Mbps self-adaptive Ethernet interfaces
• SATA Interface: 4 SATA interfaces
• HDD Capacity: Up to 10TB per HDD
• Total HDD Capacity: Up to 40TB using 4 HDDs
• Serial Interface: 2 × RS-485 half-duplex, 1 × RS-232
• Alarm In/Out: 16 inputs / 4 outputs, optional 16 inputs / 9 outputs
• USB Interface: Front panel: 2 × USB 2.0 / Rear panel: 1 × USB 3.0
• Ctrl 12V: N/A, optional support
• DC 12V: N/A, optional support
• GUI Languages: Includes English, Arabic, French, German, Italian, Spanish, Portuguese, Turkish, Japanese, Korean, Thai, Ukrainian, and other languages
• Power Supply: 100 to 240VAC, 50 to 60Hz
• Power Consumption: ≤20W without HDD
• Working Temperature: -10°C to 55°C
• Working Humidity: 10% to 90%
• Dimensions: 445 × 400 × 75mm
• Weight: ≤5kg without HDD
• Certification: FCC Part 15 Subpart B, ANSI C63.4-2014, CE EN 55032:2015, EN 61000-3-2, EN 61000-3-3, EN 50130-4, EN 55035:2017
• Obtained Certifications: CE, FCC, IC, CB, KC, UL, RoHS, REACH, WEEE, RCM, UKCA, LOA, BIS
• Important Note: Facial recognition, Motion Detection 2.0, and perimeter protection cannot be enabled at the same time.
• Physical Interfaces: LAN 1 and LAN 2 interfaces, Audio In, Audio Out, HDMI interface, VGA interface, RS-232 serial interface, USB 3.0 interface, Alarm In/Out and RS-485, GND, power supply, power switch
Applications:
• Smart 32-camera IP CCTV systems
• Large commercial surveillance projects
• Factories and industrial facilities
• Warehouses and logistics sites
• Schools, universities, and administrative buildings
• Hospitals, clinics, and medical facilities
• Retail chains and large showrooms
• Residential compounds and large villas
• Sites requiring human and vehicle false alarm reduction
• Systems requiring facial recognition and face picture search
• Projects requiring video structuralization and advanced VCA by compatible cameras
• Sites requiring long recording duration up to 40TB storage
• Professional CCTV control rooms and rack-mounted installations
• Projects using separate PoE switch or external camera power source
Connect Gates Recommendation:
• Recommended for professional Hikvision smart IP surveillance projects requiring 32 channels, AcuSense AI analytics, 4 HDD bays, dual Gigabit LAN, alarm I/O, and long recording duration.
• Suitable when the customer needs high camera capacity, advanced human/vehicle filtering, facial recognition, perimeter protection, and up to 40TB total HDD capacity.
• Compared with DS-7632NXI-K2, this model is stronger for storage-heavy projects because it supports 4 SATA interfaces instead of 2 and provides dual Gigabit LAN.
• Since this model does not include built-in PoE ports, cameras should be powered using a separate PoE switch or external power source.