Ajax NVR H2DAC Network Video Recorder 8-channel

The NVR H2D series delivers professional-grade network video recording with 4K HDMI output, up to 8 PoE ports, and two hot-swappable drive bays — purpose-built for enterprise-level surveillance systems that demand reliability and scalability.

Video

• Video inputs: 8 channels
• Recording resolution: 12 MP, 8 MP, 6 MP, 5 MP, 4 MP, 3 MP, 1080p, UXGA, 720p, VGA, 4CIF, DCIF, 2CIF, CIF, QCIF
• HDMI output resolution: 3840×2160, 1920×1080, 1280×1024, 1280×720 px
• Live view / playback resolution: 12 MP, 8 MP, 6 MP, 5 MP, 4 MP, 3 MP, 1080p, 720p, D1, VGA, CIF

Decoding

• Formats: H.265, H.264, JetSparrow
• Decoding capability:
  • 2 channels at 4096×4096 px (25 fps)
  • 4 channels at 3840×2160 px (25 fps)
  • 8 channels at 2880×1620 px (25 fps)
• Live view window layouts: presets — 1, 4, 9, 16, 25, 5+1, 7+1, 12+1; custom grid up to 10×10
• Synchronous playback: 4 channels

Intelligent Video Analytics

The built-in motion detection engine operates at both the NVR level and the Ajax camera level (up to 8 channels each). You can seamlessly switch between NVR and camera-based analysis algorithms directly from the Ajax app.

Interfaces

• HDD/SSD: 2 × SATA III, supports drives up to 16 TB (2.5" and 3.5" form factors), full hot-swap support. Drives not included.
• Network: 1 × RJ45 Gigabit Ethernet (10/100/1000 Mbps) + 8 × PoE RJ45 Fast Ethernet (10/100 Mbps, 802.3af/at)
• USB: Rear panel — 2 × USB 2.0 Type-A (keyboard, mouse, audio devices); Front panel — 1 × USB 2.0 Type-A (flash drive)

PoE

• Standard: 8 × IEEE 802.3af/at (Alternative A, power over data pairs)
• Max power per port: up to 25 W
• Total power budget: up to 160 W

Network

• Bandwidth: incoming / outgoing — up to 160 Mbps each
• Protocols: HTTP, HTTPS, TCP/IP, IPv4, IPv6, UPnP, SNMP, RTSP, UDP, SMTP, NTP, DHCP, DNS, DDNS
• ONVIF®: conformant with Profile S; supports H.265 (HEVC) encoding, motion detection event transmission, WDR control, and other image settings

Key Features

• Supported devices: Ajax cameras, ONVIF® Profile-compatible IP cameras, RTSP streams
• Redundancy mode: simultaneous recording of the same stream to two storage devices for maximum data reliability
• Split mode: sequential distribution of streams across multiple drives to balance load and optimize storage usage
• Built-in VMS: integrated video wall with live feeds, smart event filters, and an interactive timeline with preview navigation for fast incident review
• Visual alarm verification: events triggered by Ajax detectors automatically highlight the corresponding camera on the video wall, enabling instant visual confirmation
• Privacy controls: granular access rights for app users, installers, and monitoring operators via Ajax PRO Desktop — fully configurable by the device owner
• Accelerometer: tamper alert triggered when the NVR is moved

Power & Enclosure

• Power supply: 100–240 V~, 50/60 Hz, 5 A
• Power consumption: up to 280 W
• Clock battery: CR2032, 3 V
• Dimensions: 330 × 330 × 44 mm
• Weight: 3.26 kg (without drives)
• Operating temperature: 0 °C to +50 °C
• Humidity: up to 75%
• Protection class: IP20
• Color: Black / White

In the Box (NVR H2D8PAC, 8-channel)

• 2 × rack-mount brackets
• Power cable
• Ethernet cable
• Installation kit
• Quick start guide