Model Video Recorder
- Model Video Recorder
Network Video Recorder
A high-performance, high-capacity NVR built for mid-to-large scale surveillance deployments. H.265 decoding, 4K output and up to 64 channels give you the headroom to grow a system without swapping hardware.
- H.264 / H.265 supported, up to 64 channels
- 4 x 4K@30fps or 16 x 1080p@30fps video decoding
- Up to 320Mbps incoming / 256Mbps output bandwidth
- 4 HDD bays, up to 32TB storage (8TB per drive)
- Automatic Network Replenishment & Packet Loss Recovery
Product Overview
The Kedacom NVR1821-04A is a 4-bay network video recorder built for demanding, growing surveillance systems. It supports H.264 and H.265 recording, decodes up to 4 channels at 4K or 16 channels at 1080p simultaneously, and scales up to 64 camera channels on a single unit.
Four internal HDD bays support up to 32TB of local storage, with e-SATA expansion for additional capacity when needed. Automatic Network Replenishment backfills any gaps in recording caused by a dropped camera connection, and Packet Loss Recovery keeps footage intact over less-than-perfect network links. Built-in DHCP and automatic network organizing simplify adding cameras during setup.
Where it's used
- Multi-camera commercial installations
- Retail chains and warehouse sites
- Hotels, hospitals and campuses
- Systems planned to scale beyond 16 cameras
Technical Specifications
| Video | |
|---|---|
| Codec Support | H.264 / H.265 |
| Decoding Capability | 4 x 4K@30fps or 16 x 1080p@30fps |
| Channels | Up to 64 |
| Incoming Bandwidth | Up to 320 Mbps |
| Output Bandwidth | 256 Mbps |
| Video Outputs | 1x HDMI (4K), 1x VGA |
| Storage | |
| Internal HDD Bays | 4, up to 32TB (8TB per drive) |
| Expansion | e-SATA supported |
| Network & Reliability | |
| User Access | Up to 64 simultaneous users |
| Setup | Automatic network organizing, built-in DHCP server |
| Resilience | Automatic Network Replenishment (ANR), Packet Loss Recovery (PLR) |
| OS | Embedded Linux, low power consumption |
| Physical | |
| Dimensions | 443 x 461 x 88 mm (17.44" x 18.15" x 3.46") |
| Weight | 7.6 kg / 16.72 lb (HDD not included) |
| Power Consumption | Max. 15W (HDD not included) |
| Brand | |
| Manufacturer | Kedacom — Model NVR1821-04A |
Larger-capacity Kedacom NVRs (8-bay, 16-bay, RAID) also available for bigger deployments. Ask us to size the right model for your camera count.
Key Features
4K-Ready Decoding
Handles 4 channels at 4K or 16 channels at 1080p simultaneously.
Scales to 64 Channels
Room to grow the system without replacing the recorder down the line.
Auto Network Replenishment
Automatically backfills recording gaps caused by dropped camera connections.
Packet Loss Recovery
Keeps footage intact even over network links that aren't perfectly stable.
Simple Deployment
Built-in DHCP and automatic network organizing speed up initial camera setup.
Large Local Storage
4 HDD bays support up to 32TB, with e-SATA for further expansion.
Downloads
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