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Technical Specifications

Hikvision DS-7616NXI-K2/16P AcuSense NVR

The DS-7616NXI-K2/16P is a 16-channel AcuSense NVR with built-in PoE, facial recognition, and human/vehicle filtering. In plain English: it helps you capture what matters and ignore what doesn’t — so you’re not wasting time scrubbing video or chasing false alarms. 

You get 4K HDMI output for clear reviewing, smart search tools for fast incident playback, and onboard AI that can ID faces and detect people/vehicles. This means faster investigations, easier evidence pulls, and less manual labor for whoever’s on security duty. 

With up to 160 Mbps incoming bandwidth and support for high-resolution IP cameras (up to 12 MP recording), it’s built for multi-camera commercial installs — not just a basic home DVR. 

And because it has 16 Power-over-Ethernet ports built in, you can power and network 16 IP cameras with a single box. That cuts down on extra switches, reduces wiring headaches, and keeps deployment clean. 

Key Features (and why they matter)

  • 16 PoE camera inputs (plug & play) — connect and power up to 16 IP cameras directly, no external PoE switch required. Easier install, fewer failure points. 
  • AcuSense human / vehicle detection — the NVR can tell people and cars apart from random motion, so you dramatically cut down false alarms from rain, trees, headlights, etc. That means fewer “middle of the night” call-outs. 
  • Built-in facial recognition — supports face capture, face search, and comparison using onboard libraries (up to 20,000 face pictures total). Perfect for access tracking, incident review, or banned-person alerts. 
  • Smart search & smart playback — jump to activity in a selected area instead of watching hours of footage. Huge time saver for investigations. 
  • 4K HDMI output — review footage at up to 3840×2160 on a monitor, so details like faces and plates stay sharp during playback. 
  • H.265+ video compression — reduces storage usage by up to 75%, so you can record longer without immediately buying more drives. Lower storage cost, longer retention. 
  • Expandable local storage — 2× SATA bays, up to 10 TB each (20 TB total). You keep evidence on-site and in your control. 
  • Hik-Connect remote access — secure app / portal support for viewing cameras, alerts, and playback without being on-site. Easier management for owners, managers, and security leads. 
  • TLS encrypted stream transmission — designed to protect video streams in transit, supporting compliance and IT/security policies. 

Intelligent Analytics

AI by Device
Facial recognition, perimeter protection, motion detection 2.0
AI by Camera
Facial recognition, perimeter protection, throwing objects from building, Motion Detection 2.0, ANPR, 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 total (≤4 MB each, ≤1 GB total)
Facial Analytics Performance
1-ch @ 8 MP
Face Picture Comparison
4-ch
Motion Detection 2.0 (by device)
All channels, 4 MP (up to 8 MP w/ enhanced SVC); human & vehicle recognition to reduce false alarms
Perimeter Protection (by device)
2-ch, 4 MP video analysis (H.264/H.265) for human/vehicle recognition to reduce false alarms
Perimeter Protection (by camera)
All channels supported

Video & Audio

IP Video Input
16-ch
Incoming / Outgoing Bandwidth
160 Mbps / 160 Mbps
HDMI Output
1-ch up to 4K (3840×2160) @ 30 Hz; 2560×1440 @ 60 Hz; 1920×1080 @ 60 Hz; plus lower resolutions
VGA Output
1-ch up to 1920×1080 @ 60 Hz
Video Output Mode
HDMI / VGA independent output
Audio I/O
Audio Out: 1-ch RCA (2.0 Vp-p, 1 KΩ, using audio input). Two-Way Audio: 1-ch RCA (Linear, 1 KΩ)
Supported Codecs
H.265/H.265+/H.264+/H.264; audio G.711ulaw / G.711alaw / G.722 / G.726 / AAC

Recording & Playback

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 synchronous playback
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)
Decoding Capability (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)

Network & Connectivity

Remote Connections
Up to 128
API / Integration
ONVIF (profile S/G); SDK; ISAPI
Compatible Browsers
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
LAN Interface
1× RJ-45 10/100/1000 Mbps self-adaptive Ethernet
PoE Camera Ports
16× RJ-45 10/100 Mbps self-adaptive PoE interfaces (IEEE 802.3af/at), total PoE power ≤200 W

Storage & I/O

SATA Bays
2 SATA interfaces
Max Drive Capacity
Up to 10 TB per HDD (up to 20 TB total)
USB
Front: 1× USB 2.0; Rear: 1× USB 2.0
Alarm I/O
Alarm In / Out: 4 / 1
Rear Panel Connections (Physical Interface)
1) PoE network interfaces
2) LAN network interface
3) AUDIO IN
4) AUDIO OUT
5) ALARM IN/OUT
6) HDMI interface
7) VGA interface
8) USB interface
9) Ground (GND)
10) Power supply input
11) Power switch

General

Power Supply
100 to 240 VAC, 50/60 Hz
Power Consumption
≤15 W (NVR only, PoE off, no HDD)
Operating Temperature
-10 °C to 55 °C (14 °F to 131 °F)
Operating Humidity
10% to 90%
Dimensions (W×D×H)
385 mm × 315 mm × 52 mm (15.2" × 12.4" × 2.0")
Weight
≤3 kg (6.6 lb) without HDD
Languages (GUI)
English, Russian, Bulgarian, Hungarian, Greek, German, Italian, Czech, Slovak, French, Polish, Dutch, Portuguese, Spanish, Romanian, Turkish, Japanese, Danish, Swedish, Norwegian, Finnish, Korean, Traditional Chinese, Thai, Estonian, Vietnamese, Croatian, Slovenian, Serbian, Latvian, Lithuanian, Uzbek, Kazakh, Arabic, Ukrainian, Kyrgyz, Brazilian Portuguese, Indonesian

Compliance / Notes

Certifications
CE, FCC, IC, CB, KC, UL, RoHS, REACH, WEEE, RCM, UKCA, LOA, BIS
Note
Facial recognition, Motion Detection 2.0, or Perimeter Protection cannot all be enabled at once (you choose the mode based on priority).

Interfaces & Included Connection Points

On the physical interface panel you get:

  • 16× PoE camera ports (RJ-45)
  • 1× LAN uplink port (RJ-45)
  • Audio In / Audio Out (RCA)
  • Alarm In / Alarm Out block
  • HDMI output
  • VGA output
  • USB ports (front + rear)
  • Ground point (GND)
  • AC power input + power switch

Ideal For

  • Small / mid-size business security — retail, warehouse, office, restaurant. Managers can quickly review incidents and pull clips for insurance or HR without being a “surveillance expert.”
  • Multi-camera commercial installs — up to 16 IP cameras powered directly from the NVR, great for locations where running separate PoE switches is annoying or costly.
  • Vehicle + human detection zones — parking lots, loading docks, gated yards. The AI filters motion so you’re alerted to people and vehicles instead of wind and shadows. 
  • Face management / access logging — schools, apartment lobbies, private facilities that want searchable face snapshots and comparisons without outsourcing analytics. 
  • Compliance-minded deployments — orgs that need encrypted streams (TLS) and controlled on-prem storage, instead of leaving footage in the cloud.
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