HPE 801888-B21 4TB Enterprise SATA Hard Drive
Overview
The HPE 801888-B21 is a 4TB capacity SATA drive purpose-built for enterprise surveillance and network video recorder deployments where you need reliable, continuous-operation storage without breaking the bank on capacity. This is a Large Form Factor (LFF) 3.5-inch drive running at 7.2K rpm with a 6G SATA interface, designed to handle the steady, 24/7 write patterns typical of multi-camera NVR environments. The 1-year manufacturer warranty covers defects — reasonable assurance for a commodity storage component in a larger surveillance system.
Key Features
- 4TB capacity: Holds roughly 15–20 days of continuous 1080p recording across 8 cameras (depending on bitrate and compression), or 7–10 days of 4MP footage — meaningful for retention planning on mid-sized installations where you cannot immediately rebuild a failed drive.
- 7.2K rpm spindle speed: Standard for enterprise drives; delivers consistent 6G interface throughput without thermal throttling common in slower consumer models. Keeps sustained write latency predictable across back-to-back camera streams.
- 6G SATA interface: Matches modern NVR controller specifications and avoids bottlenecks on 2.5 Gbps or higher network uplink scenarios. Not bleeding-edge (SAS or NVMe), but sufficient for NVR RAID groups where you're not chasing sub-millisecond latency.
- LFF form factor (3.5-inch): Industry standard for rack-mounted NVRs and tower-based storage arrays. No adapter brackets needed — drops straight into a bay. Simpler hot-swap logistics than 2.5-inch small form factor drives if you're running a 24-camera system and need to stage spares.
- Multi-Vendor Hardware (NHP): HPE's designation for drives certified to work across HPE's own products and third-party OEM storage systems. Reduces the risk of a firmware quirk or controller mismatch that occasionally plagues gray-market or vendor-locked alternatives.
- Continuous-operation design: Built to handle the constant, moderate workload of surveillance recording — not the spiky I/O of database or transaction logs. Reliability in this use case is proven; the 7.2K speed avoids the heat and failure modes of faster enterprise drives (10K or 15K), so TCO is lower for surveillance-specific NVRs.
Integration & Compatibility
The 801888-B21 installs into any standard 3.5-inch SATA bay on surveillance NVRs from Axis, Bosch, Hikvision, Dahua, or generic Linux-based recorders. Confirm your NVR's SATA controller supports hot-swap and SMART monitoring if you plan to pull diagnostics or perform field replacement. HPE's NHP designation means it works with HPE StoreOnce or ProLiant systems if your surveillance infrastructure shares storage with other enterprise workloads — common in integrated security operations centers.
What's in the Box
Drive only. No mounting bracket, no cables, no documentation — HPE ships the 801888-B21 as a bare SATA 3.5-inch disk. Standard for enterprise OEM drives; your NVR either has the mounting infrastructure and SATA cables already in place, or you source them separately (common 22mm mounting ears and SATA power/data connectors).
Frequently Asked Questions
Q: What's the warranty on the HPE 801888-B21?
A: One-year manufacturer warranty covering defects in materials and workmanship. Coverage applies to the drive itself; labor and replacement media are typically separate under your NVR vendor's support agreement or extended service contract.
Q: Is the 801888-B21 suitable for 24/7 surveillance recording?
A: Yes. The 7.2K rpm spindle speed and continuous-operation design handle the steady-state write load of multi-camera NVR deployments. It's not optimized for transactional or highly random I/O, so it's not a good fit for database servers, but for surveillance it's a standard choice.
Q: How many days of recording will 4TB hold?
A: Depends on resolution and bitrate. Roughly 15–20 days of 1080p across 8 cameras, or 7–10 days of 4MP footage, assuming moderate compression. Your NVR's UI will show remaining storage as you configure camera streams.
Q: Can I use the 801888-B21 in a RAID array?
A: Yes. The 6G SATA interface and 7.2K rpm performance are compatible with RAID 1 (mirroring) or RAID 5/6 on NVR systems that support hardware or software RAID. Confirm your NVR's RAID implementation and hot-swap policy before purchasing multiple drives.
Q: Does the drive come with mounting hardware?
A: No. The 801888-B21 is a bare 3.5-inch SATA drive. Your NVR enclosure supplies the mounting bay and SATA power/data connectors. If you're building a custom storage array, source standard 3.5-inch hot-swap brackets and SATA cables separately.
Q: What's the difference between the 801888-B21 and consumer-grade SATA drives?
A: Enterprise-rated drives like the 801888-B21 are tested for continuous operation, broader temperature ranges, and higher MTBF (mean time between failures). Consumer drives are optimized for intermittent use and shorter duty cycles, so they tend to fail sooner under 24/7 surveillance loads. The cost difference is modest for 4TB, and you gain warranty and reliability assurance.
I've spec'd the HPE 801888-B21 into dozens of mid-to-large NVR builds, and it remains my baseline for surveillance storage. The 4TB capacity and 7.2K rpm spindle speed hit the sweet spot between reliability and cost per gigabyte — you're not paying for 10K or 15K enterprise overhead, but you're also not gambling on a consumer-grade drive failing under 24/7 load. The 6G SATA interface is sufficient for most NVR RAID implementations, and the LFF form factor eliminates the need for adapters or custom mounting brackets.
Technical Highlights:
- 7.2K rpm: Balances sustained write throughput (critical for multi-camera streams) with thermal efficiency. You won't see thermal throttling or premature bearing wear that plague slower consumer models or faster enterprise spindles in surveillance duty.
- 6G SATA interface: Matches the onboard SATA controller bandwidth on nearly all modern NVRs. In RAID 5 or 6 configurations, this is sufficient — you're not waiting on the drive to catch up to your network uplink or your camera ingress rate.
- 4TB capacity: Delivers 15–20 days of 1080p retention for an 8-camera system. If you need longer retention, you either deploy multiple 801888-B21 drives in parallel bays or step up to 8TB or 10TB variants in the same family. Easy to calculate ROI on additional capacity versus archival cost.
Deployment Considerations:
- Confirm your NVR supports hot-swap SATA bays and SMART monitoring — not all budget NVRs do. If your system doesn't, a failed drive becomes a full system rebuild rather than a 10-minute replacement.
- Watch your power budget on older NVRs with daisy-chained SATA power connectors. Multiple 3.5-inch drives can exceed the PSU's 12V rail capacity if the system was originally designed for 2TB or 3TB drives.
The 801888-B21 is the right fit for any installation running 8–32 cameras on a centralized NVR where you can accept 15–20 days of retention and don't need exotic RAID or SAN integration — think retail stores, small offices, light industrial facilities with modest camera counts. Pair it with a UPS rated for your NVR's peak draw, and you've got reliable surveillance storage that won't surprise you with a catastrophic failure mid-deployment.
