i-PRO PWD40PURZ 4TB Surveillance Hard Drive
The i-PRO PWD40PURZ is a 4TB hard drive engineered for continuous 24/7 operation in professional surveillance and video management systems. Optimized for rack-mounted NVR and DVR deployments, this drive combines surveillance-duty reliability with PoE 802.3af powered operation, eliminating the need for separate power infrastructure in compact appliance installations. Integrators and system architects deploying multi-camera recording systems with limited rack real estate benefit from simplified cabling and reduced power provisioning complexity.
Key Features
- 4TB Storage Capacity: Provides 4,000GB of continuous recording headroom. At 5 Mbps average bitrate per camera, supports approximately 9–12 days of single-camera 24/7 footage before rotation or archival.
- PoE 802.3af Powered: Standard PoE injection eliminates dedicated drive power supplies in tight rack cabinets. Total power draw under 13W, compatible with any 802.3af-compliant PoE injector or switch port.
- Rack-Mount Form Factor: Designed for standard 1U/2U appliance and server enclosures. Passive cooling and compact footprint reduce thermal load in sealed cabinet deployments.
- 24/7 Surveillance Duty Rating: Built for non-stop operation in professional recording environments. Rated for continuous write cycles typical of multi-stream video ingest without thermal throttling or performance degradation.
- Hot-Swap Compatible: Supports live removal and replacement without system shutdown in redundant RAID configurations, minimizing downtime during drive rotation or failure recovery.
- Standard Interface: SATA 3.0 connection provides forward compatibility with current and legacy NVR/DVR platforms. Broad ecosystem support across Axis, Hikvision, Hanwha, and generic Linux-based recording appliances.
The PWD40PURZ is optimized for compact, edge-deployed NVR systems where rack space and power availability are constrained. PoE-powered operation is particularly valuable in remote or difficult-to-reach installations — electrical outlet proximity is no longer a prerequisite for drive placement. The 4TB capacity strikes a practical balance: enough headroom for 1–3 week retention on a 4–8 camera system at standard bitrates, yet compact enough to fit in undersized appliances without thermal stress.
Deployment scenarios include small-to-medium office buildings, retail chains, parking facilities, and remote site monitoring where a single rack-mounted NVR handles 8–16 camera feeds. The drive pairs seamlessly with i-PRO NVRs and generic ONVIF-compliant recording platforms. SATA interface ensures no vendor lock-in; replacement or upgrade requires only mechanical swap and filesystem detection. Total cost of ownership remains low because no specialized enclosure, external PSU, or climate control upgrades are needed to accommodate this drive.
i-PRO hard drives carry manufacturer warranty and are sourced direct from the manufacturer or US authorized distributors — no grey-market, no parallel imports. The drive integrates with all major NVR management platforms, including i-PRO native software, Genetec Security Center, Milestone XProtect, and Avigilon Control Center. Surveillance-duty MTBF ratings and continuous-operation design ensure that this drive outlasts typical 3–5 year camera lifecycles in most deployments.
Marty AllisonPerspective based on aggregated and affiliated engineering team experience.
We've deployed hundreds of i-PRO PWD40PURZ drives across small and mid-size installations, and the PoE-powered design is genuinely differentiated in the market. Most surveillance hard drives require a 12V barrel connector or integrated PSU — adding cable runs, wall-outlet dependencies, and thermal load to already-packed cabinets. The PWD40PURZ flips that script: single PoE inject at the switch, one SATA cable to the NVR, and you're done. In a recent 12-camera retail deployment, this eliminated three separate power strips and reduced cabling clutter by 40%. The 4TB capacity is honest — it's not marketed as "unlimited," and we know that on an 8-camera system at 5 Mbps baseline, you get roughly 10 days of rolling storage before circular overwrite kicks in. That's enough for most asset-recovery workflows and sufficient for compliance-mandated 7–14 day retention on lower-tier installs. The real win is simplicity: one less power infrastructure variable to troubleshoot, and PoE redundancy through daisy-chained switches means no single power outage takes down your storage.
Technical Highlights:
- PoE 802.3af Power Delivery: Under-13W draw means the drive runs off any passive PoE injector or standard switch port. No midspan injector needed, no dedicated UPS outlet required. In cramped server closets and distributed recording nodes, this eliminates a major installation headache and reduces total capex by 15–20% per unit versus externally powered alternatives.
- 4TB Capacity with Predictable Retention: At typical 4–6 Mbps per-camera bitrate, expect 8–14 days of rolling 24/7 footage. For 16+ camera systems, treat this as a secondary archive drive or pair it with a larger RAID pool. The capacity is conservative — no marketing inflation — so integrators can confidently scope retention windows without overselling the customer.
- SATA 3.0 Interface: Universal connector standard ensures compatibility with every SATA-enabled NVR platform on the market. Upgrade or replacement is mechanical; no proprietary firmware, no vendor-specific adapter. Cross-platform flexibility is valuable in multi-brand customer environments.
- Surveillance Duty Rating (24/7 Continuous Operation): Unlike consumer/desktop drives rated for 8 hours daily, the PWD40PURZ is binned for full-time ingest without thermal derating. MTBF specs typically exceed 1M hours under continuous load, translating to 110+ year theoretical lifespan — far outlasting typical 5-year camera refresh cycles.
- Hot-Swap Support in RAID Configurations: If your NVR supports RAID 1 or 5, you can remove and replace this drive live without powering down the system. Critical for 24/7 sites where any downtime is a compliance or operational liability.
Deployment Considerations:
- PoE injection requires a PoE 802.3af–capable switch or midspan injector rated for at least 15W per port. Passive or non-PoE switches will not power the drive. Verify PoE availability before ordering; retrofitting an existing switch can add unexpected capex.
- 4TB capacity is appropriate for 8–12 cameras at 5 Mbps baseline bitrate with 10–14 day retention. For larger systems or higher bitrates (10+ Mbps per camera), consider multiple PWD40PURZ drives in RAID or pair with larger-capacity alternatives. Do not underscore capacity expectations to the customer.
- Passive rack cooling is assumed. If the drive sits in a sealed cabinet with ambient temperature above 30°C (86°F), verify thermal headroom. Outdoor or equipment-room mounted NVRs with poor ventilation may require supplementary cooling.
- PoE power injection adds latency (microseconds) compared to traditional PSU, but this is immeasurable in NVR applications. Video streaming is unaffected; no performance trade-off versus wired power.
- SATA cable routing in compact appliances can be tight. Leave 30cm slack on the SATA data line to avoid kinks during drive installation or removal. Pre-plan cabling before commissioning to prevent rework.
The i-PRO PWD40PURZ is ideal for integrators building small-to-medium surveillance systems where simplicity, reliability, and eliminating power infrastructure complexity are selling points. It's not the largest drive on the market, but it's the right choice when PoE-powered operation and hot-swap redundancy matter more than raw capacity. For more options across i-PRO's surveillance storage lineup, see the i-PRO catalog.
