| Video forwarding | 64-channel forwarding at 320 Mbit/s (160 Mbit/s with intelligent services enabled) |
| Playback/Download | 32‐channel playback at 160 Mbit/s |
| Video input | 64-channel access at 320 Mbit/s (160 Mbit/s storage with intelligent services enabled) |
| HDMI | Two HDMI ports for outputs from different sources: one HDMI 2.0 port with 4K output resolution and one HDMI 1.4 port with 1080p output resolution |
| VGA | External conversion cables can be used to extend VGA ports. |
| Preview | Primary screen: 1/4/8/9/16/32 panes; secondary screen: 1/4/8/9/16 panes |
| Client | iClient (installed on PCs), managing up to 16 servers |
| Camera access | 64 cameras connected to one server |
| Memory | 8 GB DDR4 |
| Processor | 64-bit multi-core Arm processor |
| Disk type | Enterprise‐level disks: 4 TB, 6 TB, 8 TB, or 10 TB Monitoring‐level disks: 4 TB or 6 TB System storage: 32 GB eMMC |
| RAID level | RAID 0, RAID 1, and RAID 5 |
| Disk port | SATA3.0 |
| Number of disks | 8 |
| Recording mode | Manual recording, scheduled recording, and alarm-triggered recording |
| Download mode | High-speed download, batch download, download by time segment, and onboard recording download |
| Search mode | By time or event |
| Recording playback | LDU: multi-channel playback and segment-based playback iClient: one- or more-channel recording playback on the video wall |
| Watermark | Digital watermarks can be added to the video from cameras and alarms are generated when the video is tampered with. |
| System login | The LDU supports only one user at a time. |
| Media security | Multiple encryption algorithms such as AES256 |
| Data Safe | Two copies of key system data are stored. If a fault occurs, service data can be automatically restored. |
| Media transmission | Bandwidth adaptation, forward error correction (FEC) 1.0, super error concealment (SEC) 2.0, and multicast |
| Platform access | Connected to the platform through GB/T 28181 or ONVIF for services such as live video viewing, recording playback, PTZ controls, and alarm reporting (only for NVRs) |
| Device access | SDK, GB/T 28181, and ONVIF standards |
| Video format | H.264, H.265, and MJPEG |
| Log download | Operation and run logs |
| Management mode | C/S client and LDU client |
| USB port | 3 x USB port (2 x USB 2.0 port on the front panel and 1 x USB 3.0 port on the rear panel) |
| Network port | 2 x 10/100/1000 Mbit/s Ethernet ports; support for the load balancing and multi‐address modes |
| Audio input | 1 RCA port |
| Audio output | 1 RCA port |
| Alarm port | 4 alarm‐in ports and 2 alarm‐out ports |
| Weight (without hard disks) | 6.6 kg |
| Operating temperature | –5°C to +55°C |
| Operating humidity | 20% to 90% |
| Power consumption (including hard disks) | 137 W |
| Fan | Intelligent rate control |
| Power supply | 110–220 V AC, 200 W |
| Dimensions (H x W x D) | 86.1 mm (H) x 447 mm (W) × 470 mm (D) |
| Chassis | 2 U |
| Certification | CE, RoHS, REACH, WEEE, CE, CB, CCC, CQC, GB/T 28181 commercial inspection by multiple countries, and HDMI |
