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Digital Watchdog

SKU: DW-VG41620T16P

Digital Watchdog DW-VG41620T16P Advanced Linux NVR
- Advanced Linux NVR with up to 20MP per channel recording
- Intel i7 processor with 16-32 GB memory configurations
- 5-year limited warranty - 16 PoE ports for direct camera attach
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$4,774.00 $2,782.99 Save $1,991.01

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Digital Watchdog

SKU: DW-VG4162T16P

Digital Watchdog DW-VG4162T16P Advanced Linux-Based NVR
- Linux NVR for demanding enterprise surveillance recording
- Intel i7 with 16-32GB memory for analytics processing
- 45-port 10G connectivity for high-channel aggregation
$2,061.00 $1,201.99 Save $859.01

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Digital Watchdog

SKU: DW-VG41632T16P

Digital Watchdog DW-VG41632T16P Advanced Linux NVR
- Linux NVR for large-scale surveillance with 16-port PoE switch
- Intel i7 with 16-32GB memory handles high-channel recording
- 10G uplink for VMS storage aggregation at the rack level
$5,880.00 $3,427.99 Save $2,452.01

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Digital Watchdog

SKU: DW-VG4164T16P

Digital Watchdog DW-VG4164T16P Advanced Linux NVR
- Linux NVR for enterprise-scale surveillance recording
- Intel i7 with 16-32GB memory for sustained channel throughput
- 45-port 10G backbone for VMS aggregation at scale
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$2,227.00 $1,298.99 Save $928.01

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Digital Watchdog

SKU: DW-VG4166T16P

Digital Watchdog DW-VG4166T16P Advanced Linux NVR
- Advanced Linux NVR for enterprise surveillance recording
- Intel i7 plus 32 GB memory ceiling for multi-stream high-res loads
- 5-year limited warranty - 19-inch rack-mount form factor
$2,491.00 $1,451.99 Save $1,039.01

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Digital Watchdog

SKU: DW-VP163T16P

Digital Watchdog DW-VP163T16P 16 Channel NVR
- 16-channel NVR for medium-to-large surveillance deployments
- Intel i7 with 16-32GB memory for analytics and multi-stream
- 5-year limited warranty for long-deployment lifecycle
$1,973.00 $1,281.99 Save $691.01

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Geovision

SKU: 745-VM00000-H004

Geovision 745-VM00000-H004 32-Channel HD DVR

32-channel HD DVR for multi-site surveillance with centralized control
- Supports 32 simultaneous HD camera channels for comprehensive facility coverage.
- ONVIF-compliant design integrates with third-party cameras and standard VMS platforms.
- Backed by a 3-year warranty, reducing long-term deployment risk for integrators.
$140.00 $94.99 Save $45.01

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Hanwha

SKU: BRR-P1H1SH1-64TB

Hanwha 1U Blaze Network Video Recorder Blaze - BRR-P1H1SH1-64TB
- Blaze 1U NVR with 64TB internal storage for surveillance
- Native integration with Hanwha camera line for plug-and-play
- Rackmount chassis for server room and IT closet deployment
$25,390.00 $16,539.99 Save $8,850.01

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Hanwha

SKU: BRR-P1H1SH1-80TB

Hanwha 1U Blaze Network Video Recorder Blaze - BRR-P1H1SH1-80TB
- 1U Blaze NVR with 80TB pre-installed storage
- Rackmount chassis for IT closet and server room install
- Optimized for multi-channel Hanwha IP camera recording
$28,200.00 $18,370.99 Save $9,829.01

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Hanwha

SKU: BRR-P1H1WH1-64TB

Hanwha 1U Blaze Network Video Recorder Blaze - BRR-P1H1WH1-64TB
- 1U Blaze NVR with 64TB pre-installed storage
- Rackmount chassis optimized for 19-inch racks
- Native Hanwha camera integration without licensing
$21,050.00 $13,712.99 Save $7,337.01

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Hanwha

SKU: BRR-P1H1WH1-80TB

Hanwha 1U Blaze Network Video Recorder Blaze - BRR-P1H1WH1-80TB
- 1U Blaze NVR with 80TB enterprise storage
- Rackmount chassis for server room cabinet efficiency
- Native Wisenet camera integration without licensing
$23,860.00 $15,543.99 Save $8,316.01

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Hanwha

SKU: BRR-P1H1WH1-16TB

Hanwha 1U Blaze Network Video Recorder, Blaze Pre-installed, 16TB RAW (10TB Usable Afte
$16,440.00 $10,709.99 Save $5,730.01

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Hanwha

SKU: BRR-P1H1SH1-32TB

Hanwha 1U Blaze Network Video Recorder, Blaze Pre-installed, 32TB RAW (21TB Usable Afte
$23,360.00 $15,216.99 Save $8,143.01

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Hanwha

SKU: BRR-P1H1WH1-32TB

Hanwha 1U Blaze Network Video Recorder, Blaze Pre-installed, 32TB RAW (21TB Usable Afte
$19,020.00 $12,389.99 Save $6,630.01

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Hanwha

SKU: BRR-P1H1WH1-48TB

Hanwha 1U Blaze Network Video Recorder, Blaze Pre-installed, 48TB RAW (32TB Usable Afte
$20,330.00 $13,243.99 Save $7,086.01

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Hanwha

SKU: BRR-P2H1SH3-112TB

Hanwha 2U Blaze Network Video Recorder Blaze - BRR-P2H1SH3-112TB
- 2U Blaze NVR with 112TB internal storage capacity
- Rackmount chassis optimized for equipment room density
- Native Hanwha camera integration without licensing fees
$39,410.00 $25,672.99 Save $13,737.01

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Rack-Mount NVRs

Enterprise rack-mount NVR appliances for high-channel-count surveillance deployments. 1U through 4U form factors with hot-swap drive bays, RAID support, and redundant power supplies handle hundreds of camera channels with continuous 24/7 recording in data center environments.

Plan Your Deployment

Specify total recording bandwidth from aggregate camera bitrates across all channels
Select RAID level and hot-spare configuration for drive failure protection
Evaluate 1U, 2U, or 4U form factor based on drive bay count and expansion needs
Confirm rack depth, airflow clearance, and power draw for cabinet planning
Plan dual-NIC and failover for network redundancy in mission-critical recording

Plan Server Architecture Storage Calculator

What to Look For When Buying

The decisions that matter most before you spec.

Throughput & Storage Reality Check

Rated camera counts don't guarantee usable performance. Most NVRs fail at their rated channel count because bitrate, codec, and storage write-speed constraints kick in first. Calculate actual bitrate per camera, factor motion-heavy periods, and stress-test before committing to scale.

RAID & Redundancy for 24/7 Operations

Enterprise deployments demand RAID 5 or 6, hot-swap drive bays, and redundant power supplies. Surveillance systems often fail exactly when you need them most — usually at the storage layer. Verify drive mean-time-to-recovery (MTTR) and PSU failover specs before purchase.

Network Backbone & Core Collapse Risk

Rack-mount NVRs pull massive sustained bitstream from the network. Networks collapse at the core when gigabit uplinks become the bottleneck. Plan for redundant 10GbE or teamed 1GbE uplinks, and validate switch fabric throughput—not port count.

Retention Math & Storage Sizing

Retention calculations fail when motion-based bitrate and codec overhead are underestimated. Model worst-case scenarios: all cameras recording at peak quality during peak hours. Undersizing storage by 30% is the industry norm—pad your calculations.

Vendor Ecosystem & Integration Depth

Leading brands like Hikvision, Hanwha, and Axis offer different API maturity, third-party integration breadth, and long-term support pipelines. Verify VMS compatibility, ONVIF compliance, and migration paths before standardizing on a platform.

Thermal & Power Density in Compact Spaces

Rack-mount appliances generate significant heat and power draw. Ensure your data center has adequate cooling capacity, PDU availability, and UPS runtime for graceful shutdown during outages. Verify MTBF ratings and check if warranty covers thermal stress scenarios.

Technology Stack

The specs and acronyms that actually affect rack-mount nvrs performance.

RAID Levels (5, 6, 10)

RAID 5 stripes data across drives with one parity block—good for < 8-drive arrays. RAID 6 uses dual parity and is safer for large capacity drives (6TB+) where rebuild time and URE (unrecoverable read error) risk spike. RAID 10 mirrors + stripes—pricey but fastest recovery.

Hot-Swap Drive Bays

Allows you to pull and replace failed drives without powering down the NVR. Critical for 24/7 operations where downtime costs money. Verify the system auto-detects new drives and auto-rebuilds RAID without operator intervention.

Redundant Power Supplies (RPS)

Two independent PSUs connected to separate electrical circuits. If one PSU fails, the second keeps the system running. Essential for mission-critical surveillance; verify wattage headroom for GPU or transcoding loads, not just baseline.

GPU Acceleration & Transcoding

Dedicated graphics processor offloads real-time video codec conversion (H.264 → H.265, multi-bitrate streaming) from the CPU. Prevents bottlenecks when serving remote clients or running AI analytics on 100+ streams simultaneously.

Gigabit vs. 10 Gigabit Networking

Single gigabit (1 GbE) ports max out around 90–110 Mbps sustained throughput per link. High-channel-count racks need 10GbE uplinks or teamed 1GbE bonds to avoid network saturation during peak recording periods.

Mean Time Between Failure (MTBF) & Warranty

Industry-standard MTBF for rack NVRs ranges 50,000–100,000 hours. Pair this with multi-year hardware warranty and support SLAs. Verify whether warranty covers thermal stress, power anomalies, and extended parts availability—critical for systems expected to run 7+ years.

Typical Deployment Scenarios

Multi-Building Corporate Campus (200 Cameras)

Deploy a Hanwha or Hikvision 4U rack NVR (256-channel capable) in the main data center with 10GbE uplinks. Pair with IP cameras distributed across 8 buildings, use edge NVRs for failover per building. Plan 90 days rolling retention at 4 Mbps average bitrate (~4.3 TB/day per building). Ensure RAID 6 for redundancy and 48-hour MTTR window.

24/7 Airport/Transit Hub (80 Cameras, 90-Day Retention)

Install a 2U or 4U rack NVR with hot-swap drive bays in secure network closet. Size storage for 90 days at 8 Mbps per camera (64 TB+ raw). Use bitrate and motion modeling to avoid undersizing. Implement redundant power (UPS + generator), teamed gigabit uplinks, and RAID 5/6 with spare drive slots pre-installed.

Gaming/Entertainment Venue (120 Cameras, Live Analytics)

GPU-accelerated rack NVR handles real-time H.264/H.265 transcoding and object detection across 120 channels. Use Axis or Speco models with NVIDIA CUDA support. Plan for 14-day retention at high quality (10+ Mbps) plus 60 days low-quality archive. Dual PSUs and redundant 10GbE uplinks non-negotiable due to live event demand.

School District Multi-Campus Deployment (300+ Cameras)

Federated approach: one 4U master rack NVR in district operations center, smaller 1U–2U appliances at each school building. School deployments require synchronized retention, remote management, and off-site backup. Choose i-PRO or Vivotek for native remote replication. Verify bandwidth budgeting across WAN links and failover behavior during connectivity loss.

Frequently Asked Questions

What's the difference between 1U, 2U, and 4U rack-mount NVRs?

Form factor determines physical height, drive bay count, and power budget. 1U = 1.75 inches tall, typically 2–4 drive bays, 8–32 channels. 2U = 3.5 inches, 4–8 bays, 16–64 channels. 4U = 7 inches, 8–16+ bays, 64–256+ channels. Choose based on channel count, retention duration, and available rack space. Larger units allow faster storage, cooler operation, and easier hot-swap workflows.

How do I calculate storage size for my deployment?

Use this formula: (Number of Cameras × Bitrate in Mbps × Retention Days × 86400 seconds) ÷ 8 = Storage in GB. Example: 64 cameras × 4 Mbps × 30 days ÷ 8 = 960 GB (≈1 TB). Add 30% overhead for motion-heavy periods, codec overhead, and RAID parity. Most deployments underestimate bitrate and storage by 30–50%—test your actual cameras before committing.

Do I need RAID 5 or RAID 6 for enterprise surveillance?

For small arrays (< 6 drives) and short rebuild windows, RAID 5 is acceptable. For large-capacity drives (8TB+) and 24/7 continuous write loads, RAID 6 is safer—it tolerates two simultaneous drive failures and reduces URE (unrecoverable read error) risk during rebuild. If uptime is critical, RAID 6 is the standard. Verify your NVR can hot-swap drives without stopping recording.

What network bandwidth do rack-mount NVRs typically require?

At peak load, expect 90–110 Mbps per gigabit (1 GbE) link sustained. For systems with 32+ channels at 4+ Mbps per camera, a single gigabit uplink will saturate. Upgrade to 10 Gigabit Ethernet or team two 1 GbE bonds to avoid core network collapse. Test your actual camera bitrate + VMS client traffic before finalizing uplinks.

Can a rack-mount NVR really handle its rated camera count?

Rarely at full quality or frame rate. Most appliances fail well below rated specifications due to storage write-speed limits, CPU transcoding bottlenecks, or codec overhead. Always de-rate by 20–40% and conduct load testing with your actual camera models and bitrate settings. Verify that the NVR can sustain peak bitrate for 24+ hours without frame drops or dropped connections.

What happens if the NVR's primary drive or power supply fails?

With RAID and redundant PSUs, the NVR keeps recording on the surviving drive(s) while the failed PSU is isolated. Hot-swap drive bays let you replace the bad drive without powering down. Ensure you have spare drives and PSUs on-site or on contract with 4-hour parts delivery. Without RAID, a single drive failure means total data loss—never deploy non-RAID systems in production.

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Rack-Mount NVRs

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