Speco Technologies N128NR112TB vs Speco Technologies N128NR32TB: Specification Comparison
Both the N128NR112TB and N128NR32TB are Speco Technologies 128-channel, 4K UHD NVRs built on H.265 compression and ONVIF-compliant IP camera support, rack-mounted and covered by a 3-year warranty. This comparison focuses on the three dimensions most critical to a purchasing decision for this class of high-channel-count recorder: storage capacity and retention planning, audio and interface capabilities, and physical/power specifications — the key variables that differentiate these two otherwise closely matched platforms.
In This Guide
- How much onboard storage does each NVR provide, and what does that mean for retention planning?
- What audio and connectivity capabilities does each unit provide?
- What are the physical dimensions, weight, and installation footprint for each unit?
- Which should you choose: the N128NR112TB or the N128NR32TB?
- Side-by-Side Specs
- FAQ
How much onboard storage does each NVR provide, and what does that mean for retention planning?
The N128NR112TB ships with 112TB of integrated storage, while the N128NR32TB ships with 32TB — a 3.5× difference in raw capacity. For a 128-channel deployment recording at 4K UHD with H.265 compression at 30fps, storage is the primary retention bottleneck. The 112TB unit materially extends continuous recording windows before overwrite or archive action is required, making it the stronger fit for deployments with compliance-driven retention mandates or high-density 4K streams.
The N128NR32TB's 32TB integrated capacity is appropriate for shorter retention windows or deployments where streams are recorded at sub-4K resolutions on a portion of channels. Both units list H.265 and H.264 compression support, and H.265's stated 50% bandwidth reduction (specified on the N128NR112TB) directly multiplies the effective retention of any given raw capacity. That bandwidth reduction claim is listed explicitly only for the N128NR112TB; the N128NR32TB's listing describes the codec benefit in general terms without a stated percentage figure.
Both units use a Serial ATA (SATA) drive interface — this is specified explicitly on the N128NR32TB; the N128NR112TB spec does not list the interface type.
What audio and connectivity capabilities does each unit provide?
Audio capability differs between the two units. The N128NR112TB lists audio input only. The N128NR32TB specifies two-way audio, meaning it supports both audio input and output — relevant for deployments requiring remote voice-down, intercommunication, or active deterrence workflows from the NVR.
Camera discovery and integration language also differs. The N128NR112TB references EZ-Record, EZ-Copy, and EZ-Search workflows. The N128NR32TB references quick discovery and installation of Speco IP cameras specifically. Both units are ONVIF-compliant. Both list analytics capability: the N128NR112TB describes real-time event detection and alerting; the N128NR32TB specifies an integrated video analytics engine for event detection and response. Neither spec enumerates the specific analytic types (e.g., line crossing, intrusion, loitering) for either unit.
The N128NR32TB lists a 12VDC, 5A power supply voltage. The N128NR112TB does not specify a power supply voltage in the provided specs. Both units list PoE (802.3af) power and a rack mount type.
What are the physical dimensions, weight, and installation footprint for each unit?
Physical and weight specifications are provided only for the N128NR32TB: 15" (W) × 2.83" (H) × 13.4" (D) and a gross weight of 12 lbs. The N128NR112TB does not include dimensions or weight in the provided specifications. Installers sizing rack space or calculating shipping and mounting loads for the N128NR112TB will need to consult the manufacturer datasheet directly at the listed path /content/product-datasheets/N128NR112TB.pdf.
Both units are described as rack-mount form factor. Housing color is white for both. Given the N128NR112TB carries 112TB of integrated storage versus 32TB, a larger physical chassis or greater weight should be anticipated, but no spec confirms this.
Both units share the same 3-year warranty coverage. Frame rate is 30fps on both. Maximum resolution is 16MP on both. Both support IR low-light camera streams and list H.265 and H.264 compression.
Which should you choose: the N128NR112TB or the N128NR32TB?
Our take: The N128NR112TB is the stronger choice when extended on-site retention at full 4K UHD across all 128 channels is the primary requirement. Its 112TB integrated storage is 3.5× the N128NR32TB's 32TB, directly translating to proportionally longer continuous recording windows before overwrite — a decisive advantage for compliance-driven or high-density deployments. The N128NR32TB, by contrast, specifies two-way audio, making it the appropriate selection when active voice-down or intercommunication from the NVR is required, and it also provides explicit physical dimensions (15" × 2.83" × 13.4", 12 lbs.) and a stated 12VDC/5A power supply — useful for rack and power-budget planning. Dimensions and power supply voltage are absent from the N128NR112TB spec. Both units are ONVIF-compliant 128-channel 4K H.265 recorders with 3-year warranties, suited to Speco-centric or mixed IP camera platforms.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | Speco Technologies N128NR112TB | Speco Technologies N128NR32TB |
|---|---|---|
| Channel Capacity | 128 channels | 128 channels |
| Video Resolution | 4K UHD | 4K UHD |
| Max Resolution | 16MP | 16MP |
| Video Codec | H.265; H.264 | H.265; H.264 |
| Integrated Storage | 112TB | 32TB |
| Storage Interface | — | Serial ATA (SATA) |
| Frame Rate | 30fps | 30fps |
| Audio | Audio input only | Two-way audio |
| Analytics | Real-time event detection and alerting | Integrated video analytics engine |
| Camera Compatibility | ONVIF-compliant IP cameras | ONVIF-compliant IP cameras |
| PoE Standard | 802.3af | 802.3af |
| Mount Type | Rack | Rack |
| Housing Color | White | White |
| Power Supply | — | 12VDC, 5A |
| Dimensions (W x H x D) | — | 15" x 2.83" x 13.4" |
| Gross Weight | — | 12 lbs. |
| Warranty | 3-year | 3-year |
Frequently Asked Questions
Which should you choose: the N128NR112TB or the N128NR32TB?
The N128NR112TB is the stronger choice when extended on-site retention at full 4K UHD across all 128 channels is the primary requirement. Its 112TB integrated storage is 3.5× the N128NR32TB's 32TB, directly translating to proportionally longer continuous recording windows before overwrite — a decisive advantage for compliance-driven or high-density deployments. The N128NR32TB, by contrast, specifies two-way audio, making it the appropriate selection when active voice-down or intercommunication from the NVR is required, and it also provides explicit physical dimensions (15" × 2.83" × 13.4", 12 lbs.) and a stated 12VDC/5A power supply — useful for rack and power-budget planning. Dimensions and power supply voltage are absent from the N128NR112TB spec. Both units are ONVIF-compliant 128-channel 4K H.265 recorders with 3-year warranties, suited to Speco-centric or mixed IP camera platforms.
Is the N128NR112TB or N128NR32TB better for larger deployments needing long video retention?
The N128NR112TB is better suited for long-retention deployments. It ships with 112TB of integrated storage versus 32TB on the N128NR32TB — 3.5× more capacity — supporting significantly longer continuous recording windows at 4K UHD across all 128 channels before footage is overwritten or must be archived.
Which unit supports two-way audio for voice-down or intercom use cases?
The N128NR32TB specifies two-way audio in its provided specifications, supporting both audio input and output. The N128NR112TB lists audio input only. If remote voice-down or intercommunication from the NVR is required, the N128NR32TB is the documented choice based on available specs.
Do both NVRs work with third-party ONVIF cameras, or are they locked to Speco cameras?
Both units list ONVIF compliance, meaning they are compatible with ONVIF-conformant IP cameras from other manufacturers. The N128NR32TB's spec additionally references quick discovery and installation of Speco IP cameras specifically, but neither unit's provided specifications indicate they are restricted to Speco-branded cameras.
More NVR Comparisons
- Speco Technologies N128NR vs Speco Technologies N128NR32TB
- Speco Technologies N128NR vs Speco Technologies N128NR128TB
- Speco Technologies N128NR32TB vs Speco Technologies N128NR128TB
- Speco Technologies N128NR160TB vs Speco Technologies N128NR
- Speco Technologies N128NR160TB vs Speco Technologies N128NR32TB
- Speco Technologies N128NR30TB vs Speco Technologies N128NR
Get a Second Opinion on Your Camera Choice
Share your site layout, coverage goals, and budget. Our team will validate the camera selection, flag anything we would change, and recommend products that match the use case.