32-Ch 4K NVR, 24-Port PoE, Dual HDMI (8K/4K), DS-7732NI-M4/24P

Introduction: Introducing the DS-7732NI-M4/24P — a 32-channel 4K NVR with 24 PoE ports and dual HDMI

The DS-7732NI-M4/24P is a 1.5U rack-mount Network Video Recorder designed for mid-to-large IP CCTV deployments that require high channel density, integrated PoE, and flexible high-resolution monitoring. Its headline capabilities include 32 IP channels, 24 built-in PoE ports (IEEE 802.3af/at) with an approximate 210 W PoE budget, and dual HDMI outputs that support up to 8K @ 30 Hz on HDMI1 and 4K @ 60 Hz on HDMI2. In short: this NVR brings a compact, all-in-one approach to projects where reliability, scale and image quality matter.

Key features at a glance

• 32 IP channels— supports cameras up to 32 MP (with practical limits when using highest ultra-HD modes).
• 24 integrated PoE ports— RJ45 PoE ports simplify camera deployment by powering cameras directly from the recorder (IEEE 802.3af/at, ~210 W budget).
• Dual high-resolution video outputs— HDMI1 up to 8K@30Hz for ultra-high-resolution video walls; HDMI2 up to 4K@60Hz for local monitoring and operator stations.
• Advanced codecs— H.265+/H.265/H.264+/H.264 support for efficient storage and bandwidth utilization.
• Flexible storage— four internal SATA bays (each up to 16 TB, total up to 64 TB) and eSATA expansion support; HDDs not included by default so integrators can select drives suitable for surveillance workloads.
• Rich I/O— audio RCA in/out, two-way audio, 16 alarm inputs / 9 alarm outputs, RS-232/RS-485 serial control and multiple USB ports.

Detailed specifications and benefits

The DS-7732NI-M4/24P handles up to 32 IP channels with an incoming bandwidth of 320 Mbps and an outgoing bandwidth of 400 Mbps. It supports up to 16-channel synchronous playback, enabling operators to review multiple camera streams simultaneously without sacrificing responsiveness. Practical decoding examples include combinations such as 2 channels at 32 MP (30 fps) plus other high-resolution streams, or larger numbers of 4 MP/1080p channels — demonstrating the units flexibility across common surveillance resolutions.

With 24 built-in RJ45 PoE ports (10/100 Mbps) and support for both 802.3af and 802.3at, this NVR eliminates the need for a separate PoE switch in many installations. The approximate 210 W PoE budget will typically power a full set of low- to mid-power cameras (including many IR dome and fixed bullet cameras); higher-power PTZs or heaters may require external PoE switches or local power. The integrated PoE simplifies rack wiring, reduces points of failure, and shortens deployment time.

Dual HDMI outputs set this model apart in its class. HDMI1 can drive an 8K display (7680×4320) at 30 Hz, ideal for large video walls or ultra-high-resolution situational awareness screens. HDMI2 supports 4K at 60 Hz, perfect for operator workstations or high-fidelity local monitoring. Additional VGA and CVBS outputs increase compatibility with legacy displays and control rooms.

Four internal SATA bays (up to 16 TB each) provide up to 64 TB of internal storage. For projects requiring further retention or redundant storage, eSATA support allows easy external expansion. Because HDDs are not included, the system can be customized with surveillance-grade drives (SMR vs PMR considerations, 24/7 workload ratings, and warranty options) to match retention policies and budget.

Audio I/O with two-way support, extensive alarm inputs/outputs and serial interfaces (RS-232/RS-485) make the NVR suitable for complex integrations — from public-address systems to third-party alarm panels and PTZ control. USB 2.0 and 3.0 ports facilitate backups, USB mouse control and firmware updates.

Use cases and scenarios where this NVR excels

• Retail chains and shopping centres:Centralised rack deployments feeding dozens of cameras per site with integrated PoE to simplify branch rollouts.
• Commercial buildings and multi-floor offices:A single rack-mounted unit can serve multiple floors or wings, offering local high-resolution monitoring and long-term retention.
• Education and campus environments:Classrooms, common areas and perimeter cameras can be consolidated to a single NVR with strong playback capabilities for investigations.
• Small to medium-sized utilities and industrial sites:The alarm I/O and serial control make it suitable where integration with access control, alarms or industrial machinery is required.
• Integrator-friendly deployments:Because HDDs arent included and the unit supports common network and storage standards, integrators can offer bundled HDD SKUs, pre-configured images or rapid-deployment units tailored to client retention and redundancy needs.

Comparisons with similar products on the market

When comparing the DS-7732NI-M4/24P to other NVR options, several distinguishing factors emerge:

• Built-in PoE vs external PoE switches:Many 32-channel NVRs require a separate PoE switch, adding cost, rack space and another point of failure. The integrated 24-port PoE simplifies cabling and lowers equipment count, although extremely high-power cameras may still need an external PoE+ solution.
• 24 PoE ports vs 16-port models:Compared with 16-port NVRs, the DS-7732NI-M4/24P supports more cameras directly and reduces the need for separate network hardware in mid-sized installations.
• High-resolution HDMI outputs:HDMI capability up to 8K is uncommon in NVRs at this tier; many competing recorders top out at 4K or 5K outputs. This makes the unit a better fit for command centres where ultra-high-resolution overview displays are used.
• Storage flexibility:With four internal SATA bays and eSATA expansion, the recorder is comparable to other mid-tier rack NVRs. Enterprise-class solutions may offer hot-swap bays, larger RAID options or greater PoE budgets, but at significantly higher cost and complexity.
• Codec efficiency:Support for H.265+ provides improved storage economy versus older H.264-only units, which can result in lower long-term storage and bandwidth costs for high-resolution deployments.

Customer testimonials and feedback

No official customer testimonials for this exact SKU were provided in the product brief. However, based on typical integrator and end-user experience with similar integrated PoE rack NVRs, the following representative feedback themes are commonly reported:

• Simplified deployment:Integrators often praise integrated PoE for reducing rack space and cabling complexity compared with solutions that use separate PoE switches.
• Good value for mid-sized installations:Customers note that a single 1.5U rack unit that supports up to 32 channels and 24 PoE devices reduces upfront hardware costs and streamlines management.
• High-resolution monitoring benefits:Facilities that require very detailed live monitoring appreciate the dual HDMI outputs and 8K/4K support for large displays and operator screens.

If you need actual customer reviews or case studies, ask your vendor for reference installations or request demo logs and performance reports — many manufacturers and distributors can provide anonymised case studies that show real-world retention and performance outcomes.

Conclusion: Why choose the DS-7732NI-M4/24P?

The DS-7732NI-M4/24P is a compelling choice for organisations and integrators that want a compact, rack-mountable NVR with generous channel capacity, integrated PoE and modern display outputs. It balances high-resolution capability (including 8K HDMI output), flexible storage options and advanced codec support with installer-friendly features such as rich I/O and serial control. For mid-to-large CCTV projects — retail rollouts, multi-site offices, campuses and similar deployments — it reduces complexity by combining recording, PoE power and monitoring into a single chassis.

Before purchase, confirm your projects camera power requirements against the ~210 W PoE budget, select surveillance-grade HDDs to meet retention goals, and verify regulatory markings (CE/UKCA) and local installation requirements. If you provide your preferred currency and deployment details, recommended RRP tiers and bundled HDD SKUs can be calculated to match local pricing strategies and operational needs.

Overall, the DS-7732NI-M4/24P offers a practical mix of performance, integration and value for organisations seeking a high-density NVR with built-in PoE and next-generation display support.