| 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 |
| Local system login | The LDU supports only one user at a time. |
| iClient login | Supports 32 users. |
| Number of disks | 8 |
| Disk port | SATA 3.0 |
| Disk type | Enterprise 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 |
| Recording mode | Manual recording, scheduled recording, and alarm-triggered recording |
| Recording playback | LDU: multi-channel playback and segment-based playback ; iClient: one- or more-channel recording playback on the video wall |
| Recording protection | SafeVideo+, recording lock, and resumable transfer |
| Search mode | By time or event |
| Download mode | High-speed download, batch download, download by time segment, and onboard recording download |
| Media security | Multiple encryption algorithms such as AES256 |
| Watermark | Digital watermarks can be added to the video from cameras and alarms are generated when the video is tampered with. |
| Media transmission | Bandwidth adaptation, forward error correction (FEC) 1.0, super error concealment (SEC) 2.0, and multicast |
| Data Safe | Two copies of key system data are stored. If a fault occurs, service data can be automatically restored. |
| Video format | H.264, H.265, and MJPEG |
| Device access | SDK, GB/T 28181, and ONVIF standards |
| Network protocols | TCP (reliable transmission), UDP (transmission protocol), RTP (data protocol), RTSP (real-time transmission protocol), RTCP (real-time transport control protocol), HTTP (hypertext transmission), SNMP (simple network management), NTP (network time calibration), SMTP (email service), DHCP (automatic IP address obtaining), SSH (Secure Shell), SFTP (secure file transfer), and FTP (file transfer) |
| 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) |
| Management mode | C/S client and LDU client |
| Log download | Operation and run logs |
| Network port | 2 x 10/100/1000 Mbit/s Ethernet ports; support for the load balancing and multi-address modes |
| USB port | 3 x USB ports (2 x USB 2.0 ports on the front panel and 1 x USB 3.0 port on the rear panel) |
| Audio input | 1 RCA port |
| Audio output | 1 RCA port |
| Alarm port | 4 alarm-in ports and 2 alarm-out ports |
| Environment requirements | Operating temperature: –5°C to +55°C ; Operating humidity: 20% to 90% |
| Power supply | 110–220 V AC, 200 W |
| Power consumption (including hard disks) | 150 W |
| Fan | Intelligent rate control |
| Dimensions (H x W x D) | 86.1 mm x 447 mm x 470 mm |
| Chassis | 2 U |
| Weight (without hard disks) | 6.6 kg |
| Certification | CE, RoHS, REACH, WEEE, CE, CB, CCC, CQC, GB/T 28181 commercial inspection by multiple countries, and HDMI |
