The DS-7764NI-M4 is a 64-channel M-Series 8K network video recorder designed for large commercial surveillance systems that require high camera capacity, substantial recording bandwidth, high-resolution local display output, and expandable multi-drive storage.
The recorder supports up to 64 IP camera inputs with incoming and outgoing bandwidth up to 400 Mbps. It supports recording resolutions up to 32MP and provides high decoding capacity for multi-camera live viewing and playback across compatible high-resolution camera configurations.
Two HDMI outputs and one VGA output support flexible control-room display configurations. HDMI 1 supports resolutions up to 8K, while the system can also provide dual 4K HDMI output for detailed monitoring, playback, event review, and system operation.
The DS-7764NI-M4 includes four SATA interfaces with support for up to 16 TB per drive, one eSATA interface, dual Gigabit Ethernet ports, 16-channel synchronized playback, Audio I/O, extensive alarm connectivity, and H.265+ compression. Its 1.5U rack-mount chassis is suited for professional commercial surveillance deployments.
High-Capacity Recording and Management Benefits
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64-Channel IP Camera Support – Connects and manages up to 64 compatible network cameras from one centralized recorder.
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400 Mbps Recording Bandwidth – Supports high-capacity multi-camera recording across large commercial surveillance systems.
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8K Video Output – HDMI 1 supports display resolutions up to 7680 × 4320 for detailed local monitoring.
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High-Resolution Recording – Supports recording resolutions up to 32MP with compatible network cameras.
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Four-Bay Storage Design – Four SATA interfaces support scalable local recording capacity and longer retention requirements.
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Dual Gigabit Network Interfaces – Two RJ45 Gigabit Ethernet ports support flexible network deployment and system management.
Technical Specifications
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IP Camera Inputs: Up to 64 channels
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Incoming Bandwidth: Up to 400 Mbps
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Outgoing Bandwidth: Up to 400 Mbps
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Maximum Recording Resolution: Up to 32MP
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Decoding Capacity: Up to 2 channels at 32MP plus 2 channels at 8MP, 10 channels at 8MP, 20 channels at 4MP, or 40 channels at 1080p
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Video Compression: H.265+, H.265, H.264+, and H.264
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Video Outputs: Two HDMI outputs, one VGA output, and one CVBS output
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Maximum HDMI Resolution: Up to 8K, 7680 × 4320
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Synchronized Playback: Up to 16 channels
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Internal Storage: Four SATA interfaces
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Maximum HDD Capacity: Up to 16 TB per HDD
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External Storage: One eSATA interface
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Network Interface: Two RJ45 10/100/1000 Mbps Ethernet ports
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Audio Interface: One RCA audio input and one RCA audio output
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Two-Way Audio: Supported through the RCA audio input
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Alarm Interface: 16 alarm inputs and 9 alarm outputs
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USB Interface: Two USB 2.0 ports and one USB 3.0 port
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Serial Interface: Two RS-485 interfaces and one RS-232 interface
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Power Supply: 100 to 240 VAC, 50 to 60 Hz
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Chassis: 1.5U 19-inch rack-mount design
Recommended Applications
- Warehouse and Distribution Centers
- Industrial Manufacturing Facilities
- School and University Campuses
- Healthcare and Medical Facilities
- Government and Municipal Properties
- Transportation and Logistics Sites
- Large Retail and Mixed-Use Properties
- Multi-Building Business Campuses
- Commercial Security Control Rooms
- Large Multi-Camera Surveillance Systems
| Video and Audio |
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| IP Video Input | 64-ch
Up to 32 MP resolution
Note: After ultra HD resolution mode is enabled, the NVR supports up to 8-ch 32 MP/24 MP IP video inputs. |
| Incoming Bandwidth | 400 Mbps |
| Outgoing Bandwidth | 400 Mbps |
| HDMI 1 Output | 8K (7680 × 4320)/60 Hz, 4K (3840 × 2160)/60 Hz, 4K (3840 × 2160)/30 Hz, 2K (2560 × 1440)/60 Hz, 1920 × 1080/60 Hz, 1600 × 1200/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz, 1024 × 768/60 Hz |
| HDMI 2 Output | 4K (3840 × 2160)/60 Hz, 4K (3840 × 2160)/30 Hz, 2K (2560 × 1440)/60 Hz, 1920 × 1080/60 Hz, 1600 × 1200/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz, 1024 × 768/60 Hz
Note: When HDMI 1 output resolution is 8K, the maximum HDMI 2 output resolution is 1080p. |
| VGA Output | 1920 × 1080/60 Hz, 1600 × 1200/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz, 1024 × 768/60 Hz |
| Video Output Mode | HDMI 1/VGA simultaneous output, HDMI 1/HDMI 2 independent output |
| CVBS Output | 1-ch, BNC (1.0 Vp-p, 75 Ω), Resolution: PAL: 704 × 576, NTSC: 704 × 480 |
| Audio Output | 1-ch, RCA (Linear, 1 KΩ) |
| Two-Way Audio | 1-ch, RCA (2.0 Vp-p, 1 KΩ, using the audio input) |
| Decoding |
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| Decoding Format | H.265+/H.265/H.264+/H.264 |
| Recording Resolution | 32 MP / 24 MP / 12 MP / 8 MP / 6 MP / 5 MP / 4 MP / 3 MP / 1080p / UXGA / 720p / VGA / 4CIF / DCIF / 2CIF / CIF / QCIF
Note: After ultra HD resolution mode is enabled, the NVR supports up to 8-ch 32 MP/24 MP IP video inputs. |
| Synchronous Playback | 16-ch |
| Decoding Capability | 2-ch @ 32 MP (30 fps) + 2-ch @ 8 MP (30 fps) / 10-ch @ 8 MP (30 fps) / 20-ch @ 4 MP (30 fps) / 40-ch @ 1080p (30 fps) |
| Dual-Stream Recording | Support |
| Stream Type | Video, Video & Audio |
| Audio Compression | G.711ulaw/G.711alaw/G.722/G.726/AAC/MP2L2 |
| Network |
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| Remote Connection | 128 |
| Network Protocol | TCP/IP, DHCP, IPv4, IPv6, DNS, DDNS, NTP, RTSP, SADP, SMTP, SNMP, NFS, iSCSI, ISUP, UPnP, HTTP, HTTPS, ONVIF (Version 2.2), OTAP |
| Network Interface | 2 RJ-45 10/100/1000 Mbps self-adaptive Ethernet interfaces |
| Camera Access Protocol | ONVIF (Version 2.5), RTSP |
| RAID |
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| RAID Type | N/A |
| Auxiliary Interface |
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| eSATA | 1 eSATA interface |
| SATA | 4 SATA interfaces |
| Capacity | Up to 16 TB capacity for each disk |
| Serial Interface | 2 RS-485 (half-duplex), 1 RS-232 |
| Alarm In/Out | 16/9 |
| USB Interface | Front Panel:2 × USB 2.0
Rear Panel:1 × USB 3.0 |
| Ctrl 12V | Controllable 12 VDC, 1 A power output for external alarm device; the power will be turned on when the alarm output is triggered.
Note: The Ctrl 12V power is controlled by alarm output 9. |
| DC 12V | 12 VDC, 1 A power output |
| General |
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| Power Supply | 100 to 240 VAC, 50 to 60 Hz |
| Consumption | ≤ 15 W (without HDD) |
| Working Temperature | -10 °C to 55 °C (14 °F to 131 °F) |
| Working Humidity | 10% to 90% |
| Chassis | 19-inch rack-mounted 1.5U chassis |
| Dimension (W × D × H) | 445 × 400 × 75 mm (17.5" × 15.7" × 3.0") |
| Weight | ≤ 5 kg (without HDD, 11 lb.) |
| Certification |
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| FCC | Part 15 Subpart B, ANSI C63.4-2014 |
| CE | EN 55032:2015+A1:2020, EN IEC 61000-3-2:2019+A1:2021, EN 61000-3-3:2013+A1:2019, EN 50130-4:2011+A1:2014, EN 55035:2017+A11:2020 |
Find answers to common questions about compatibility, installation, infrared night vision, recording storage, and AcuSense human and vehicle classification.
What’s the difference between this 64-channel 1.5U NVR and a larger rack NVR?
This 1.5U NVR is more compact, but it still supports up to 64 IP cameras and 400 Mbps bandwidth. In real installations, it’s usually chosen when you want high channel count without going full 2U or 3U size. It fits better in tighter rack spaces while still handling large commercial systems.
How many cameras can I actually run at full resolution on this NVR?
It supports up to 64 IP cameras, but high-resolution performance depends on decoding limits. For example, it can handle combinations like 2-ch 32MP or multiple 8MP/4K streams. In practice, installers mix resolutions to balance performance instead of running every camera at max resolution all the time.
Does this NVR support 8K HDMI output for a monitoring wall?
Yes. HDMI 1 supports up to 8K output while HDMI 2 supports up to 4K. This is useful in control rooms where you want a main 8K display for overview and a second screen for detailed camera layouts. It helps security teams manage large camera grids more efficiently.
Can this NVR work with ONVIF cameras from different brands?
Yes. It supports ONVIF (Version 2.2/2.5) and RTSP, so it can integrate with many third-party IP cameras. In real-world setups, this is useful for system upgrades where not all cameras come from the same manufacturer, allowing everything to be recorded in one central system.
What does 400 Mbps bandwidth actually mean in daily use?
The 400 Mbps incoming and outgoing bandwidth means the system can handle heavy multi-camera traffic at the same time. For installers, this matters when running lots of 4K or high-bitrate cameras. It reduces lag during live view and helps prevent dropped frames during remote access.
How many hard drives can this NVR support and what’s the max storage?
This NVR supports 4 SATA drives plus 1 eSATA expansion, with up to 16TB per drive. That gives up to 64TB internal storage, plus expansion options depending on setup. In real use, this is enough for long-term recording in warehouses, campuses, or multi-building systems.
Does this NVR support audio recording and IP speaker integration?
Yes. It supports one RCA audio output and one two-way audio channel, plus up to 8 IP speakers. In practice, this allows audio playback and communication in monitored areas, which is useful for entrances, retail stores, or parking lots where audio adds extra context to video events.
Can I view and manage cameras remotely with this NVR?
Yes. It supports up to 128 remote connections, so multiple users can view live or playback video at the same time. Installers typically use this for business clients who want management access from phones, desktops, or security centers without affecting system performance.
Does this NVR support recording in H.265+ format?
Yes. It supports H.265+, H.265, H.264+, and H.264 compression formats. H.265+ is commonly used to reduce storage consumption while keeping video quality stable. In real deployments, this helps extend recording time without immediately upgrading hard drives.
What types of installations is this 64-channel 8K NVR designed for?
This NVR is mainly used in large commercial environments like warehouses, campuses, factories, logistics hubs, and multi-building properties. It’s built for high camera counts, centralized monitoring, and long recording retention where reliability and bandwidth handling are more important than simple home use.
