
NVR H2D series
Network video recorders with 4K HDMI output, up to 16 PoE ports, and support for 2 hot-swappable HDDs
Product versions

NVR H2D8PAC (8-ch)
8-channel network video recorder with 4K HDMI output, eight PoE ports, and support for two hot-swappable HDDs

NVR H2DAC (8-ch)
8-channel network video recorder with 4K HDMI output and support for two hot-swappable HDDs

NVR H2D8PAC (16-ch)
16-channel network video recorder with 4K HDMI output, eight PoE ports, and support for two hot-swappable HDDs

NVR H2DAC (16-ch)
16-channel network video recorder with 4K HDMI output and support for two hot-swappable HDDs

NVR H2D16PAC (16-ch)
16-channel network video recorder with 4K HDMI output, 16 PoE ports, and support for 2 hot-swappable HDDs
Double the storage. Double the confidence.
Ajax network video recorders integrate Ajax video devices and third-party IP cameras into a single ecosystem. NVR H2D series recorders support two hot-swappable HDDs — ideal for facilities that require a deeper archive and reliable data backup. Equipped with PoE1 ports, the NVRs can directly connect and power up to 16 IP cameras. The system adapts to specific monitoring needs: video can be managed remotely via Ajax apps or on-site with the built-in VMS.
Built to stand out
Continuous operation and easy maintenance with hot-swappable HDDs
Resilient storage with two recording modes and support for two HDDs
Effortless integration with existing systems and third-party monitoring software
Outstanding monitoring experience with Ajax apps and local VMS
Compare Ajax NVR models
NVR H2D series | |||
Product versions | NVR H2D8PAC (8-ch) NVR H2D8PAC (16-ch) NVR H2D16PAC (16-ch) | NVR H2DAC (8-ch) NVR H2DAC (16-ch) | NVR HAC (8-ch) NVR HAC (16-ch) |
Supported HDDs | 2 | 2 | 1 |
HDD hot swapping | — | ||
PoE | up to 16 | — | — |
HDMI | 4K | 4K | Full HD |
Ethernet | up to 1 Gbps | up to 1 Gbps | up to 100 Mbps |
USB | 3 × 2.0 | 3 × 2.0 | 2 × 2.0 |
Always-on recording without service breaks
All devices in the NVR H2D series deliver continuous recording, even during maintenance. They support hot swapping, so installed HDDs can be replaced at any time without shutting down the recorder.

Full story preserved with two-drive recording
NVR H2D series offers two recording modes designed to enhance system resilience. Both minimize the risk of data loss if one drive fails, always preserving sufficient context of recorded events.

Redundancy mode
Footage is duplicated across both hard drives to ensure a full backup.

Split mode
Footage is recorded alternately in equal segments across both hard drives, optimizing storage capacity and balancing HDD load.
Keeping track of critical events — at the desk or on the go
Ajax NVRs easily adapt to any monitoring workflow. Ajax provides a full suite of mobile and desktop apps for comprehensive video management. These secure, cloud-based tools enable users to view the video wall, manage the archive, and adjust settings from anywhere in the world. And with 4K HDMI and three USB ports for connecting a display and peripherals, a full-fledged monitoring station can be arranged right at the desk. Whatever the setup, relevant events always stay in sight.

Easy integration through ONVIF and RTSP
Ajax video devices support ONVIF and RTSP protocols — no special tricks, no extra effort. This opens up numerous opportunities to upgrade and retrofit existing video setups with advanced security features. Ajax cameras and NVRs connect to third-party surveillance or video management systems (VMS) in just a few taps. A special wizard tool in Ajax apps simplifies the configuration process by automatically retrieving all necessary network data. Enjoy smooth streaming and flexible image configurations, whether building a new setup or expanding an existing one.

Profiles2 supported:
- ONVIF Profile S
- ONVIF Profile T
- ONVIF Profile M
Codecs supported:
- H.264
- H.265 (HEVC)
Three available roles:
- Administrator
- Operator
- User
Additional features:
- Motion detection events
- AI recognition

Ajax video devices
Step into a new era of video surveillance with Ajax. Our devices combine NDAA-compliant hardware, cutting-edge software, and built-in AI to deliver an unrivaled user experience. Enjoy clear footage day or night, fast and seamless navigation empowered by proprietary video transmission technology, and industry-leading privacy safeguards.
Customizable video wall for simultaneous monitoring
Streamline surveillance with a video wall that displays integrated video streams from all connected devices. Keep every corner of the facility in view — whether on an HDMI-connected display or via mobile and desktop Ajax apps. Rearrange the layout as needed to keep priority visuals in focus.


Smooth archive navigation
Ajax apps make finding recorded events faster than ever. Thanks to our proprietary JetSparrow technology, the system responds instantly, allowing for smooth playback and effortless navigation through the event timeline. Users may tap any event to jump straight to the relevant footage, filter recordings by date or object type, and export clips in seconds — all within a single, intuitive interface.



Instant event-to-video alarm verification
No more sifting through piles of footage to find a specific moment. Ajax video devices are fully synchronized with the system. Notifications in Ajax apps instantly redirect users to a relevant incident recording.

Set up scenarios for cameras to start recording as soon as certain Ajax detectors are triggered. Configure video settings to instantly receive high-resolution visual verification of alarms.



Rapid and encrypted data transfer
JetSparrow is the heart and brain of Ajax video transmission, storage, and management. We developed this video transmission technology to deliver an ultra-fast VMS experience. With JetSparrow, navigating through the local archive feels as smooth as browsing cloud storage. As a result, surfing the archive becomes remarkably efficient, and the live view initiates without any delay.
Peer-to-peer transmission
TLS encryption
High stability
Built-in motion detection
Save storage and simplify footage review by setting up pixel-based motion detection. Define specific zones where movement triggers video recording, so that only relevant events are captured. This conserves HDD space and makes archive navigation even faster and more efficient.

Privacy by design

Enhanced archive and data security

Restricted access to visual data

Strengthened account security

User-controlled system
Hardwired for any setup
- 4К HDMI port for connecting a display
- Three USB 2.0 ports for a keyboard, mouse, or flash drive
- Up to 16 PoE1 ports for effortless camera connection
- Option for rack mounting with the ready-to-use kit

Hassle-free installation and setup
Adding to an Ajax security system via QR code — no plugins or web interface

- PoE1 ports for effortless camera connection
- Option for rack mounting with the ready-to-use kit

- Configuring and testing via Ajax mobile and desktop apps
- Support for two hot-swappable HDDs
- Support for ONVIF/RTSP authorization
- Configurable motion detection zones for connected cameras
- Automatic search for available third-party cameras on the local network

- Real-time NVR state accessible in the built-in VMS and Ajax apps
- Remote control and configuration via Ajax apps

PoE ports are available for NVR H2D8PAC (8-ch), NVR H2D8PAC (16-ch), and NVR H2D16PAC (16-ch).
The integration currently supports Profile T and Profile M features only partially. Please read the article for more information on Ajax video devices supporting ONVIF authorization.
Technical information
NVR H2D8PAC (8-ch)
NVR H2D8PAC (16-ch)
NVR H2DAC (16-ch)
NVR H2D16PAC (16-ch)
Ajax product categories
In an Ajax system, you can combine devices of all product categories: Intrusion protection, Video surveillance, Fire and life safety, or Comfort and automation. Create the system to suit your needs and manage it in a single interface.



