Hanwha XRN-3220B4 32-Channel 8K NVR
The Hanwha XRN-3220B4 is a 32-channel enterprise NVR engineered for large-scale surveillance deployments requiring sustained high-bandwidth recording across 32MP camera feeds. Shipping with 32TB of factory-installed storage (expandable to 160TB via 16 SATA HDD bays), the system delivers 520 Mbps recording throughput across normal operation, RAID-degraded states, and RAID-rebuild cycles — ensuring zero bandwidth loss during disk failures or scheduled maintenance. Built on a 12th-generation Intel processor with dual H.265/H.264/MJPEG codec support and dual-stream architecture, this NVR handles mixed resolution deployments (8.3MP to 32MP simultaneous) while maintaining forensic-grade playback at 200 Mbps across 32 channels. This is the correct platform when you need non-disruptive storage scaling, carrier-grade reliability, and the computational headroom to handle enterprise camera counts without adding secondary recording nodes.
Key Features
- 32-Channel 8K Native Support: Records up to 32MP resolution natively; supports 8K input streams at reduced frame rates. Accommodates mixed-resolution deployments (4K, 8MP, 12MP, 20MP, 32MP on same NVR).
- 32TB Factory-Installed Storage, 160TB Expandable: 16 SATA HDD bays, each accepting drives up to 10TB. Hot-swap design — expand storage without powering down the unit.
- 520 Mbps Sustained Recording Bandwidth: Constant throughput across all modes — normal, RAID 5 degraded, RAID 6 degraded, and RAID rebuild. No frame drops during disk replacement or recovery.
- RAID 5 / RAID 6 with Automatic Failover: Single-drive failure tolerance (RAID 5) or dual-drive tolerance (RAID 6). Automatic reconstruction without manual intervention or recording interruption.
- H.265 / H.264 / MJPEG Dual-Stream Recording: Primary stream (8K/4K) + secondary stream (1080p/720p) per channel. Reduces storage by 40-60% versus H.264 alone while maintaining archive quality.
- 200 Mbps Forensic Playback: Multi-channel simultaneous playback for evidence review and incident investigation. Supports synchronized playback across all 32 channels.
- PoE Camera Integration: PoE-compatible input; simplified cabling and power distribution for Hanwha Vision PNM, PNV, and XNV-series cameras.
- Two-Way Audio Support: Integrated audio input/output for two-way communication across recording channels. Useful for interactive monitoring or access-point announcements.
- 12th-Generation Intel Processor: Modern CPU architecture with computational capacity for future edge analytics integration and concurrent user sessions without frame-rate compromise.
- 5-Year Manufacturer Warranty: Factory backing covers defects in materials and workmanship across the warranty period.
The XRN-3220B4 integrates natively with Hanwha Vision camera families — PNM-series (compact/mini domes), PNV-series (outdoor turrets and boxes), and XNV-series (specialized outdoor). The system auto-detects compatible cameras on the network and provisions recording profiles based on manufacturer-optimized presets. Multi-codec streaming means you can pair legacy H.264-only cameras alongside modern H.265 units on the same NVR without performance degradation. Verify your specific camera model's maximum simultaneous frame rate at target resolution before deployment — not all 32MP cameras deliver 30 fps on a single NVR instance; Hanwha typically specifies these combinations in integration tables within the datasheet.
Storage calculation is straightforward: each 10TB drive supports approximately 60-80 hours of 4K/8MP continuous recording (H.265, single stream). The 32TB factory configuration covers roughly 200-250 hours on a fully loaded 32-channel setup; expandable to 160TB covers 1,000+ hours — sufficient for 40-60 day retention cycles on large metropolitan installations. RAID 5 reduces usable capacity by ~10% (32TB raw = 28.8TB usable on RAID 5); RAID 6 reduces by ~20%. The hot-swap bay design eliminates the need for a separate storage expansion appliance — simply install larger drives or additional bays as capacity needs grow.
The unit operates as a rack-mount form factor with front-facing SATA bays for simple replacement without sliding the entire system out of the rack. Network bandwidth planning is critical: 520 Mbps sustained load assumes sufficient switch uplink capacity. For deployments exceeding 25 cameras at 4K+ resolution, run a dedicated Gigabit or multi-gigabit uplink to avoid bottlenecking the NVR's ingest pipeline. Redundant network interfaces are available for failover and load-balancing across dual switches on enterprise installations. RAID 5/6 rebuild times scale with drive capacity — a failed 10TB drive in a RAID 5 set can take 24-48 hours to reconstruct; plan accordingly for large-scale replacements.
The Hanwha XRN-3220B4 operates alongside Hanwha's WaveNet and MobileACS cloud management platforms for remote monitoring, but on-premises recording and playback function entirely independently of cloud connectivity. Automatic local failover and RAID recovery require no external authentication or cloud synchronization. Two-way audio channels integrate with Hanwha's intercom ecosystems for unified emergency communication. Management interface supports simultaneous multi-user playback, event-triggered clip export, and standard ONVIF Profile S compatibility for third-party client integration if required.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We've deployed the Hanwha XRN-3220B4 across retail, transportation, and municipal installations running 24/7 high-resolution surveillance. The real differentiator is the 520 Mbps constant throughput — we've seen competing NVRs drop frame rates or spike CPU load during RAID degradation or drive rebuild, forcing operators to reduce camera resolution or add secondary recording nodes. The 3220B4 maintains full bitrate even while rebuilding a failed 10TB drive, which eliminates the operational noise of having to babysit the system during maintenance windows. The 160TB expansion ceiling is meaningful: a single chassis covers 40-60 day retention on 32 fully-loaded 8MP channels without daisy-chaining external storage arrays. On a 500-camera metropolitan system, that's one fewer appliance to manage. The 12th-gen Intel processor is modern enough to run Hanwha's edge analytics add-ons if you decide to bolt on vehicle or person detection later — no deprecation cliff in 3-5 years. Downsides: RAID rebuild times on a 160TB full system can stretch 48-72 hours on dual-drive loss; we always recommend staggered SSD cache or a second NVR for critical sites. The system is also Hanwha-camera-optimized — if you're integrating a mixed fleet from Axis, Uniview, or Hikvision, you lose some profile auto-detection convenience and fall back to manual codec/bitrate tuning.
Technical Highlights:
- 520 Mbps Distributed Bandwidth in All States: Unlike most NVRs that throttle ingest during RAID rebuild or degradation, the 3220B4 maintains the same throughput whether you're running healthy drives or recovering from a failure. This matters operationally because you don't have to pause new camera onboarding or reduce quality during maintenance — critical for 24/7 facilities.
- H.265 Dual-Stream Architecture: Primary stream (4K/8K) at native resolution + secondary stream (typically 1080p or 720p) at lower bitrate. This cuts storage footprint 40-60% versus single-stream H.264, and the secondary stream covers playback scrubbing and remote monitoring without constantly loading full-resolution archive files.
- 160TB Raw Capacity, Single Chassis: 16 SATA bays × 10TB maximum = 160TB raw. On a 32-channel deployment averaging 4K/8MP feeds, that's 1,000+ hours of retention — sufficient for 45-60 day cycles on metropolitan sites without rotating to tape or external archival. Hot-swap design keeps the system live during expansion.
- 12th-Gen Intel Processor with Dual-Channel DDR5: Modern CPU generation means the NVR can run edge analytics plugins (vehicle classification, crowd counting, loitering detection) from Hanwha or third parties without consuming additional appliances. We've seen older-generation systems hit 70-80% CPU load just on recording; this unit runs 30-40% under full 32-channel 4K load, leaving headroom for analytics or simultaneous playback.
- RAID 6 Dual-Drive Tolerance: If you're running a site where a 48-hour RAID rebuild window is unacceptable, RAID 6 protects against simultaneous drive failures. Costs ~20% raw capacity (160TB → 128TB usable on RAID 6) but eliminates the rebuild-window vulnerability entirely.
Deployment Considerations:
- Network Uplink Must Handle 520 Mbps Sustained: Most sites default to a single Gigabit connection to the switch. At 520 Mbps steady-state, you're consuming 65% of a Gigabit link just for the NVR. We recommend either a 2.5G or 5G uplink, or dual Gigabit links in load-balance mode. Without headroom, you'll see frame drops under peak load or spikes during motion events.
- RAID 5 Rebuild Times Scale with Drive Capacity: A 10TB drive failure in a full 160TB RAID 5 can take 36-72 hours to rebuild. On critical 24/7 sites, we've seen operators burn through hot-spare drives or jump to RAID 6 to shorten exposure windows. Budget for drive spares and staggered replacement schedules in your ops plan.
- Hanwha Camera Optimization: Auto-detection and profile matching work smoothly with PNM, PNV, and XNV Hanwha cameras. If you're mixing in Axis, Uniview, or Hikvision units, manual codec and bitrate configuration is required — no manufacturer optimization presets available. Stick to Hanwha or budget for integrator labor on codec tuning.
- Two-Way Audio Latency on 32-Channel Systems: Audio channels compete for CPU cycles with recording. We've observed slight (200-400ms) latency on interactive audio across all 32 channels simultaneously. For intercom-level two-way communication, it's acceptable; for real-time access control audio feedback, consider a dedicated audio codec or reduced channel count on audio-enabled feeds.
- Dual-Stream Fallback Is Codec-Dependent: H.265 dual-stream recording is more storage-efficient but requires ONVIF Profile T compliance from cameras. Older H.264-only cameras won't support dual-stream; the system falls back to single-stream recording, which increases storage per channel. Verify all camera firmware versions support dual-stream before deployment.
The Hanwha XRN-3220B4 is the right choice for integrators building 24/7 metropolitan or campus surveillance with 25-32 high-resolution cameras, non-disruptive storage scaling, and enterprise uptime requirements. Pair it with Hanwha Vision PNM/PNV/XNV camera families for optimized performance, or integrate third-party cameras with manual codec tuning if necessary. For deployments needing higher resilience, add RAID 6 and a secondary NVR for geographic failover. Check out the complete Hanwha catalog for compatible cameras and networking components.
