Continental Ajax DC 8 ch Black 8-channel 4K (3840×2160) NVR, 25/30fps, SATA HDD up to 16 TB, 100 Mbit/s, IP20

Continental Ajax DC 8 ch Black is an 8-channel network video recorder (NVR) that supports up to 3840×2160 (4K) resolution at 25/30 fps per channel. The unit provides eight video inputs, a SATA interface for a single 3.5" hard drive up to 16 TB, and a 100 Mbit/s Ethernet connection. Designed for continuous or event-based recording in small-to-medium security installations, it integrates with IP cameras and Ajax security systems to provide synchronized notifications and fast archive access.

Advantages

The recorder offers 4K-capable recording on all channels and supports encrypted, low-latency video transmission. Integration with ONVIF and RTSP-compatible cameras enables retrofit and expansion of existing surveillance setups. Local storage via a single SATA HDD simplifies maintenance and keeps data within the installation site. The device includes features for motion-triggered recording, timestamped archive navigation and secure video export with digital signature verification.

Suitable for

• Small commercial premises and retail stores
• Offices and administrative buildings
• Residential complexes and multi-apartment properties
• Remote sites requiring local archive storage and secure access

Key specifications

• Channel count: 8 network video inputs
• Maximum per-channel resolution: 3840×2160 (4K) at 25/30 fps
• Storage interface: SATA for one 3.5" HDD, up to 16 TB capacity
• Network interface: 100 Mbit/s Ethernet
• Recording modes: continuous and event-based (motion/scenario triggered)
• Security: TLS-encrypted transmission and digital signature for exported video
• Compatibility: ONVIF and RTSP support for third-party IP cameras

How to use

Install the NVR in a suitable rack or cabinet and connect IP cameras to the network. Insert a compatible 3.5" SATA hard drive (up to 16 TB) into the drive bay and connect the recorder to the local network via the Ethernet port. Use the Ajax app or compatible VMS to run the setup wizard, add cameras, configure recording schedules, motion detection zones and alarm-triggered scenarios. Archive navigation and export tools are available through the app interface for quick access to specific timestamps and events.

Recommendations

For reliable long-term recording, use a surveillance-grade 3.5" HDD and configure motion detection zones to reduce unnecessary recording. Regularly monitor HDD health, free space, and device resources via the management interface, and ensure network connectivity and firmware are kept up to date for security and performance.