DS-9664NI-M8 4K 64 Channel Enterprise NVR - Enterprise 32MP Recording

In this review of the DS-9664NI-M8 4K 64 Channel Enterprise NVR, the bottom line is clear: this recorder is built for large-scale surveillance deployments that demand very high resolution and robust storage options. The unit stands out for supporting recording up to 32 megapixels and for its extensive drive and RAID options, which make it a practical choice for security teams who need reliable, long-term footage retention. It is not aimed at casual or small-home users; the hardware and I/O are tailored to enterprise and campus installations.

Key Features

• High-resolution recording: Supports up to 32 MP cameras so sites can capture highly detailed images for identification and forensics.
• Heavy decoding capacity: Can decode multiple high-resolution streams concurrently, handling 2-ch@32 MP or up to 32-ch at 1080p to support mixed camera fleets.
• Dual HDMI outputs: HDMI 1 and HDMI 2 provide flexible monitoring with HDMI 1 capable of up to 8K output and HDMI 2 for a secondary 4K/1080p feed.
• Large internal storage: Accommodates up to eight SATA hard drives plus one eSATA for expanded retention, and supports multiple RAID levels for data protection.
• Balanced network throughput: 400 Mbps incoming and 400 Mbps outgoing bandwidth suits multi-camera, high-bitrate installations without immediate network bottlenecks.
• Audio expansion: Supports up to eight IP speakers so sites can add two-way or broadcast audio as part of the security solution.

Who It's For

This NVR is aimed at enterprise IT and security teams running large facilities, campuses, parking complexes, or multi-site retail where high-resolution capture and long-term storage are required. Installers who need flexible monitoring outputs and strong RAID protection will appreciate the unit's design.

It is not the right fit for most homes or very small businesses that do not need dozens of channels or the ability to record at 32 MP; those buyers should look for simpler, lower-cost recorders. Also, users who prefer a bundled, ready-to-run system should note that hard drives are not included and must be procured and installed separately.

Pros & Cons

Pros

• Very high maximum recording resolution up to 32 MP for detailed image capture.
• Dual HDMI outputs with an 8K-capable HDMI 1 provide flexible monitoring and display options.
• Supports up to eight SATA drives plus eSATA and a wide range of RAID configurations for resilient storage.
• Balanced 400 Mbps incoming and outgoing bandwidth suitable for multi-camera, high-bitrate setups.

Cons

• Hard drives are not included, so initial setup requires additional procurement and installation.
• Enterprise-level features and complexity may be unnecessary for small sites or non-technical users.

Specifications

Channels	64 IP channels
Max camera resolution	Up to 32 megapixels
Decoding capacity	2-ch@32 MP, 2-ch@24 MP, 4-ch@12 MP, 8-ch@8 MP, 16-ch@4 MP, 32-ch@1080p
Video outputs	Dual HDMI, Dual VGA and single CVBS (HDMI 1 up to 8K; HDMI 2 up to 4K/60Hz)
Network bandwidth	Incoming 400 Mbps, Outgoing 400 Mbps
Storage bays	Up to 8 SATA HDDs plus 1 eSATA (HDD not included)
RAID support	RAID 0, 1, 5, 6, 10 and N+M hot spare

Our Verdict

The DS-9664NI-M8 is a strong choice for organizations that require very high resolution recording, flexible display outputs, and robust RAID-protected storage. It delivers enterprise-level performance and scalability, but buyers should plan for the additional cost and installation of multiple hard drives. For large-scale surveillance where image detail and data reliability matter, it represents good value.

Frequently Asked Questions

Does this NVR include hard drives?
No, hard drives are not included; the unit supports up to eight SATA drives and one eSATA for expanded storage.

What is the maximum output resolution on the HDMI ports?
HDMI 1 can output up to 8K and HDMI 2 supports up to 4K; if HDMI 1 is set to 8K, HDMI 2 is limited to 1080p.

Can this unit protect recorded data against drive failure?
Yes, it supports RAID 0, 1, 5, 6, 10 and N+M hot spare to reduce the risk of data loss.