The DS-7616NXI-K2 is a 16-channel AcuSense network video recorder designed for commercial surveillance systems that require centralized IP camera management, intelligent event analysis, 4K local display output, and expandable recording storage.
The recorder supports up to 16 IP camera inputs with incoming bandwidth up to 160 Mbps. H.265+ compression helps manage recording bandwidth and storage usage while maintaining support for high-resolution network cameras.
AcuSense functions support human and vehicle analysis for compatible motion and perimeter events. Motion Detection 2.0, facial recognition capabilities, smart search, and smart playback help security operators review relevant activity more efficiently across supported camera configurations.
The DS-7616NXI-K2 provides independent HDMI and VGA outputs, with HDMI display resolution up to 4K. Two SATA interfaces support scalable local recording storage, while 16-channel synchronized playback, Gigabit Ethernet connectivity, Audio I/O, alarm interfaces, and USB backup support professional commercial surveillance deployments.
Intelligent Recording and System Management Benefits
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16-Channel IP Camera Support – Connects and manages up to 16 compatible network cameras from a centralized recorder.
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AcuSense Event Analysis – Supports human and vehicle analysis for compatible motion and perimeter events.
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Motion Detection 2.0 – Helps classify people and vehicles across supported channels for more focused event review.
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4K HDMI Output – Supports high-resolution local display for live monitoring, playback, and system operation.
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High Recording Bandwidth – Provides up to 160 Mbps incoming bandwidth for multi-camera surveillance systems.
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Dual-HDD Storage Design – Two SATA interfaces support expandable local recording capacity.
Technical Specifications
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IP Camera Inputs: Up to 16 channels
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Incoming Bandwidth: Up to 160 Mbps
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Video Compression: H.265+, H.265, H.264+, and H.264
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Maximum Recording Resolution: Up to 12MP
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Decoding Capacity: Up to 2 channels at 12MP, 3 channels at 8MP, 6 channels at 4MP, or 12 channels at 1080p
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Intelligent Analytics: Motion Detection 2.0, human and vehicle analysis, facial recognition, smart search, and smart playback
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Video Output: Independent HDMI and VGA outputs
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Maximum HDMI Resolution: Up to 4K
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Synchronized Playback: Up to 16 channels
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Internal Storage: Two SATA interfaces
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Network Interface: One RJ45 10/100/1000 Mbps Ethernet port
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Audio Interface: One RCA audio input and one RCA audio output
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Alarm Interface: Four alarm inputs and one alarm output
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USB Interface: Two USB ports
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Power Supply: 12 VDC
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Chassis: 1U compact design
Recommended Applications
- Retail Stores
- Office Buildings
- Warehouses
- Apartment Communities
- Schools and Educational Facilities
- Healthcare Offices
- Restaurants and Hospitality Locations
- Commercial Parking Facilities
- Small Industrial Sites
- Multi-Camera Business Surveillance Systems
| Facial Recognition |
| Facial Detection and Analytics |
Face picture comparison, human face capture, face picture search |
| Face Picture Library |
Up 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 human face capture |
| Face Picture Comparison |
4-ch face picture comparison alarm |
| Motion Detection 2.0 |
| Human/Vehicle Analysis |
16-ch |
| Video and Audio |
| IP Video Input |
16-ch |
| Incoming Bandwidth |
160 Mbps |
| Outgoing Bandwidth |
160 Mbps |
| HDMI Output |
1-ch, 4K (3840 × 2160)/30 Hz, 2K (2560 × 1440)/60 Hz, 1920 × 1080/60 Hz, 1600 × 1200/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz, 1024 × 768/60 Hz |
| VGA Output |
1-ch, 1920 × 1080/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz |
| Video Output Mode |
HDMI/VGA independent output |
| CVBS Output |
N/A |
| Audio Output |
1-ch, RCA (2.0 Vp-p, 1 KΩ, using the audio input) |
| Two-Way Audio |
1-ch, RCA (Linear, 1 KΩ) |
| 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) |
| Stream Type |
Video, Video & Audio |
| Audio Compression |
G.711ulaw/G.711alaw/G.722/G.726/AAC |
| Network |
| Remote Connection |
128 |
| 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 |
| Network Management |
Mobile App for easy network management |
| Auxiliary Interface |
| SATA |
2 SATA interfaces |
| Capacity |
Up to 10 TB capacity for each HDD |
| USB Interface |
Front panel: 1 × USB 2.0; Rear panel: 1 × USB 2.0 |
| Alarm In/Out |
4/1 |
| General |
| Power Supply |
12 VDC, 3.3 A |
| Consumption |
≤ 15 W (without HDD) |
| Working Temperature |
-10 °C to 55 °C (14 °F to 131 °F) |
| Working Humidity |
10% to 90% |
| Dimension (W × D × H) |
385 × 315 × 52 mm (15.2" × 12.4" × 2.0") |
| Weight |
≤ 1 kg (without HDD, 2.2 lb.) |
| 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 |
| Important Note |
| Function Limitation |
Facial recognition and Motion Detection 2.0 cannot be enabled at the same time. |
| Available Model |
DS-7616NXI-K2 |
Find answers to common questions about compatibility, installation, infrared night vision, recording storage, and AcuSense human and vehicle classification.
What commercial projects is the DS-7616NXI-K2 suitable for?
The DS-7616NXI-K2 is suitable for small to midsize commercial surveillance projects that require centralized recording for up to 16 IP cameras. Typical applications include retail stores, office buildings, restaurants, clinics, apartment properties, warehouses, schools, and other business locations requiring organized video management and room for system expansion.
How many IP cameras can the DS-7616NXI-K2 manage?
The DS-7616NXI-K2 supports up to 16 IP camera inputs. Installers should also evaluate camera resolution, frame rate, recording schedule, network bandwidth, and decoding requirements because the practical system design depends on more than the total number of connected cameras.
How does AcuSense help commercial security teams?
AcuSense analysis helps distinguish human and vehicle activity from less relevant movement in supported surveillance events. This can reduce the number of nuisance alerts that security personnel must review and make it easier to locate footage associated with people or vehicles during an investigation.
Can the DS-7616NXI-K2 support an existing surveillance system upgrade?
Yes. The recorder can be considered for compatible commercial system upgrades, recorder replacements, or camera expansions. Before installation, integrators should verify camera compatibility, firmware requirements, available network bandwidth, storage planning, and whether existing smart functions are supported by the selected cameras and recorder configuration.
Does the DS-7616NXI-K2 include built-in PoE ports?
The standard DS-7616NXI-K2 is not the 16-port PoE version. Cameras should be connected through external PoE switches or other suitable network infrastructure. Buyers requiring integrated camera power and direct network ports should verify whether the separate DS-7616NXI-K2/16P model is more appropriate.
How many hard drives can be installed in the DS-7616NXI-K2?
The DS-7616NXI-K2 provides two internal SATA drive bays. Actual recording retention depends on the installed drive capacity, number of cameras, video resolution, frame rate, compression settings, scene activity, and whether recording is continuous, scheduled, or event based.
Is the DS-7616NXI-K2 suitable for warehouse or retail surveillance?
Yes. A 16-channel recording platform can support cameras covering entrances, checkout areas, stockrooms, loading zones, warehouse aisles, offices, and exterior access points. Its centralized interface helps authorized personnel review recordings and manage multiple operational areas from one system.
Can the DS-7616NXI-K2 display video on a 4K monitor?
Yes. The recorder supports HDMI output at up to 4K resolution. Display quality and layout performance depend on the connected monitor, selected output settings, camera streams, and the number of channels being viewed or decoded simultaneously.
What should installers verify before deploying the DS-7616NXI-K2?
Installers should confirm camera compatibility, total incoming bandwidth, decoding requirements, storage retention targets, PoE switch capacity, network design, monitor connections, remote access requirements, and user permissions. Smart event capabilities should also be verified because performance may depend on camera model, firmware, and system configuration.
Why choose a 16-channel AI NVR for a commercial property?
A 16-channel AI NVR provides a balanced platform for businesses that need more capacity than a small recorder without moving to a larger enterprise system. It supports centralized recording, structured system expansion, and more efficient event review while helping installers keep deployment and ongoing maintenance manageable.
