Description
The Vivotek NR9581-V3 is a high-performance 128-channel, 8-bay professional network video recorder (NVR) engineered for large-scale video surveillance deployments. Powered by an embedded Windows 11 operating system and robust VSS Pro software, the NR9581-V3 delivers exceptional recording, playback, and event management capabilities for mission-critical security environments.
Supporting up to 128 IP camera channels (32 channels included, expandable by license), this enterprise-class NVR enables 512 Mbps of recording throughput and 650 Mbps for remote clients. Its 2U rack-mount chassis features eight hot-swappable drive bays with RAID 0/1/5/6/10/50/60 support, offering scalable storage and failover redundancy for uninterrupted operation.
Designed for advanced surveillance workflows, the NR9581-V3 integrates Smart VCA analytics, Deep Search, Smart Search II, and VCA event search for precise detection and efficient investigations. It supports full 4K HDMI output, dual monitor display, fisheye dewarping, and multi-layout live view modes, enhancing situational awareness in real time. Enhanced security is ensured with AES encryption, watermarking, and Trend Micro IoT cybersecurity.
Ideal for airports, city surveillance, transportation systems, and critical infrastructure, the NR9581-V3 offers complete flexibility with ONVIF Profile S camera compatibility, POS and UPS integration, and external I/O device support. With built-in failover, redundant power, and comprehensive event notification options, it ensures 24/7 reliability in the most demanding surveillance applications.
| Category | Specification |
|---|---|
| Model | NR9581-V3 |
| Form Factor | 2U Rackmount NVR |
| Operating System | Embedded Windows 11 |
| Channel Support | 32 channels (expandable to 128 with license) |
| Video Format | MJPEG, MPEG4, H.264, H.265 |
| Decoding Resolution | Up to 7680 x 2560 |
| Decoding Performance | H.264: 1920×1080 @ 360 fps; H.265: 1920×1080 @ 180 fps |
| Recording Throughput | 512 Mbps |
| Remote Throughput | 650 Mbps |
| Recording Modes | Continuous, Event, Custom Schedule |
| Pre/Post-Recording | 3–15 sec (pre), 10–60 sec (post) |
| Video Output | HDMI ×1, DisplayPort ×1, DVI ×1, VGA ×1 |
| Max Output Resolution | HDMI: 4096×2160; DP: 7680×4320; DVI/VGA: 1920×1200 |
| Display Modes | 1×1 to 8×8 grid, Panorama, Focus, Vertical layouts |
| Fisheye Dewarp | 1O, 1P, 1R, 1O3R, 4R, 2P, 4R Pro, 1O8R |
| PTZ Control | Home, Preset, Patrol, Auto Pan, Auto Focus, Zoom Speed, Smart Tracking |
| Audio Support | G.711, G.726, AMR, MPEG-2 AAC-LC, 2-way audio |
| Storage | 8 × Hot-swappable HDD bays (HDD sold separately) |
| RAID Support | 0, 1, 5, 6, 10, 50, 60 |
| Backup Options | USB pen drive (FAT), NAS (SMB & CIFS) |
| Network | 2.5GbE LAN ×2 |
| Protocols | IPv4, TCP/IP, HTTP, HTTPS, UPnP, RTSP/RTP/RTCP, SMTP, FTP, DHCP, NTP, DNS, DDNS, iSCSI, SNMP |
| Alarm Management | Time, Trigger Type, Status, Source; Export CSV |
| Smart Analytics | Intrusion, Loitering, Line Crossing, Face, Crowd, Running, Parking, Restricted Zone, Smart Tracking |
| Cybersecurity | Trend Micro IoT Security (Brute Force, Cyber Attack, Quarantine) |
| Integration | POS, UPS, ONVIF Profile S, I/O Box (Advantech, CHIYU, MOXA) |
| User Accounts | Up to 4096 |
| Advanced Features | Smart Search I/II, Deep Search, LPR, VCA Counting, Failover |
| Client Support | Shepherd, VSS, iViewer (iOS/Android) |
| Power Input | 100–240V AC, Redundant |
| Power Consumption | Max. 550 W |
| Certifications | CE, FCC, VCCI, C-Tick, UL, CB, BSMI, BIS |
| Dimensions (H × W × D) | 89 × 437 × 647 mm |
| Weight | 15.8 kg (without HDD) |
| Operating Temperature | 5°C ~ 35°C (41°F ~ 95°F) |
| Humidity | 5% ~ 95% |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
Building a Complete AV System?
This product is rarely deployed alone. It’s typically part of a fully integrated AV system. AVENDOR designs, integrates, and supports end-to-end environments—from single rooms to enterprise-wide deployments.
- System Design & Engineering
- Installation & Integration
- Programming & Ongoing Support
Trusted by enterprises, universities, and government organizations across the U.S.
A decade of delivery — trusted by 275+ clients across industries
