ACTi - KNR-421 - 64-Channel 8-Bay RAID 2U Rackmount Standalone NVR
Product Overview
This 64-channel 8-bay RAID 2U rackmount standalone NVR is designed for centralized surveillance recording and management in medium to large security deployments. It supports onboard hardware RAID, Embedded Linux operation, web client access, multi-browser support, and multiple local interfaces for display, audio, and digital input/output integration.
Key Configuration
64-channel rackmount standalone NVR with 64 free licenses; 8 storage bays with onboard hardware RAID 0, 1, 5, 6, and 10; 2U rackmount form factor; Embedded Linux with ARM-based embedded SoC; audio, digital input/output, HDMI x 1, and VGA x 1 interfaces.
Key Features
• Supports up to 64 video channels with 64 free licenses included
• Eight storage bays support expanded recording capacity
• Onboard hardware RAID supports RAID 0, 1, 5, 6, and 10 configurations
• Web Client and multi-browser support enable browser-based system access
• Audio, digital input/output, HDMI, and VGA interfaces support system integration and local operation
Technical Context
The NVR combines high channel capacity with RAID-based storage options for centralized video recording. Its Embedded Linux platform and ARM-based embedded SoC support standalone operation, while web client access allows browser-based monitoring and management.
Installation Notes
The 2U rackmount design is intended for installation in standard equipment racks. HDMI and VGA outputs allow local monitor connection, while audio and digital input/output interfaces support additional surveillance system integration.
| Product Profile | |
| Product Type | Standalone NVR |
| Maximum Resolution | 16MP |
| Maximum Number of Video Devices | 64 |
| Maximum Number of Clients | Local: 1, Remote: 128 |
| Supported Screen Resolution | HDMI: 3840x2160 (30Hz), 1920x1080 (60Hz/50Hz), 1600x1200 (60Hz), 1280x1024 (60Hz), 1280x720 (60Hz), 1024x768 (60Hz) VGA: 1920x1080 (60Hz/50Hz), 1600x1200 (60Hz), 1280x1024 (60Hz), 1280x720 (60Hz), 1024x768 (60Hz) |
| Hardware | |
| System Architecture | Embedded SoC-based (ARM platform) |
| CPU | ARM-based embedded SoC |
| License | |
| License Required | No |
| Free License | 64 |
| Live View | |
| Display Layout Mode | 1, 4, 6, 8, 9, 16, 25, 36, 64 |
| Fisheye Dewarping | Yes (Live View, Playback) |
| Local Live View Performance | [H.265] 2ch (up to 30 fps at 12MP) 4ch (up to 30 fps at 4K 3840 x 2160) 6ch (up to 30 fps at 5MP) 8ch (up to 30 fps at 4MP) 10ch (up to 30 fps at 3MP) 16ch (up to 30 fps at 2MP 1920 x 1080) 32ch (up to 25 fps at 960p) 36ch (up to 30 fps at 720P) 64ch (at D1) [H.264] 2ch (up to 30 fps at 12MP) 2ch (up to 30 fps at 4K 3840 x 2160) 4ch (up to 30 fps at 5MP) 6ch (up to 30 fps at 4MP) 8ch (up to 30 fps at 3MP) 14ch (up to 30 fps at 2MP 1920 x 1080) 28ch (up to 25 fps at 960p) 30ch (up to 30 fps at 720P) 64ch (at D1) |
| PTZ | |
| PTZ Control | PTZ Control, Speed Control |
| Video | |
| Compression | H.265 Adaptive Stream, H.264 Adaptive Stream |
| Analytics | |
| Object Recognition Database | Vehicle Picture Capacity: 25,000 |
| Maximum Snapshot Capacity | Captured Face Snapshots: 2,000,000 Captured Vehicle Snapshots: 2,000,000 Captured Object Snapshots via Smart Intrusion Protection: 2,000,000 |
| Analytics from Camera | Receive analytics based events from the cameras and respond to the events: Face Detection; Face Comparison; Smart Motion Detection (People Detection, Vehicle Detection); Smart Intrusion Protection (Intrusion Detection, Line Crossing Detection, Enter Area Detection, Exit Area Detection); Vehicle Detection (LPR); Object Metadata; Temperature Detection; Traffic Monitoring |
| Audio | |
| Audio Type | 2-way, Line-in, Line-out |
| Audio Compression | G.711 A-law, G.711 u-law |
| Network | |
| Network Protocol & Service | IPv4, IPv6, TCP, UDP, DHCP, PPPoE, HTTP, HTTPS, DNS, DDNS, NTP, RTSP, SMTP, UPnP, TLS 1.2, TLS 1.3, SNMP, IEEE 802.1X |
| Ethernet Port | 2 x Ethernet (10/100/1000 Base-T), RJ-45 connector |
| Maximum Outgoing Throughput | 160 Mbps |
| Security | TLS v1.2, TLS v1.3 encrypted communication |
| Recording | |
| Scheduled Recording | Yes |
| Event Recording | Yes |
| Manual Recording | Yes |
| Maximum Recording Throughput | 320 Mbps |
| Search & Playback | |
| Playback Control | Continuous forward and backward playback with speeds 0.125x/0.25x/0.5x/1x/2x/4x/8x/16x, play, pause, stop |
| Synchronized Playback | 16 channels |
| Video Export | MP4 |
| Snapshot Export | JPEG |
| Event | |
| Event Trigger | [NVR]: Low disk space, Disk full, Disk not found, Failed to write storage, IP address conflict, Network loss. [Video Device]: Video motion detection, Tampering detection, External device through digital input, Sound detection |
| Event Response | E-mail notification with snapshots, Upload snapshot to FTP server |
| System | |
| Permission Control | 128 Remote users, Customizable permissions for user groups |
| Server Operating System | Embedded Linux |
| Client PC Operating System | Windows 7, Windows 8, Windows 10 |
| USB | 2-Port USB 2.0, 1-Port USB 3.0 |
| Language | English, Traditional Chinese, Japanese, Spanish |
| Integration | |
| ONVIF Compliant | Yes, Profile S, Profile G, Profile T |
| Web Browser | IE 10 or newer, Google Chrome, Microsoft Edge, Firefox |
| Storage | |
| Storage Bay | SATA, Max. 8 Disk(s) (without storage disks) |
| HDD Size | 3.5" |
| Maximum Recording Capacity | 24TB x8 |
| RAID Level | Hardware RAID (on Board) 0, 1, 5, 6, 10 |
| Interface | |
| Serial Port | 1 x RS-485 |
| Audio Interface | RCA Jack |
| Digital Input/Output | 16/4 |
| Local Access | USB Mouse |
| Local Display Interface | HDMI x 1, VGA x 1 |
| General | |
| Power Source | AC 100-240V |
| Power Consumption | 32 W (AC, without HDD) |
| Weight | 4000g (8.80lb) |
| Dimensions | (W x H x D): 442mm x 89mm x 426mm (17.4" x 3.5" x 16.8") Rack Space: 2U |
| Bundled Accessories | Rack Bracket |
| Fan | Yes |
| Operating Temperature | -10°C ~ 55°C (14°F ~ 131°F) |
| Operating Humidity | 10% - 90% RH, non-condensing |
| Remote Access | Web Client |
| Approvals | CE, FCC, BSMI, UL Listed |
| Color | Black |
| Warranty | 2 Year(s). For extended warranty offering, see http://www.acti.com/support/warranty |
| Comments | * The supported analytics functions depend on the compatible Z-series cameras. |
