HPE 3.2TB NVME GEN4 High Performance Mixed USE SFF BC U.3 Static PM1755 SSD - P78801-B21

HPE P78801-B21 3.2TB NVMe Gen4 U.3 SSD

Overview

The HPE P78801-B21 is a 3.2TB NVMe Gen4 SSD in U.3 form factor, designed for high-performance mixed-use enterprise deployments. This drive brings PCIe Gen4 speed to servers and storage systems that support the U.3 interface standard, delivering the throughput your surveillance, data analytics, or transactional workloads demand without the bottleneck of older SATA or Gen3 NVMe architectures. The P78801-B21 pairs a 3.2TB capacity with the SFF (Small Form Factor) package and basic carrier design, making it a flexible choice for HPE server platforms and compatible third-party systems that recognize the U.3 standard.

Key Features

• 3.2TB Capacity: Holds roughly 2,000 hours of 1080p H.265 video (at ~4 Mbps bitrate) or 500 hours of 4K footage on a single drive—meaningful when you're provisioning storage for medium-to-large surveillance backends, data warehouses, or mixed transactional systems that can't tolerate frequent expansion cycles.
• PCIe Gen4 NVMe Interface: Theoretical peak throughput of ~7.4 GB/s (compared to ~3.5 GB/s for Gen3) reduces bottleneck risk in servers handling parallel reads/writes—critical for multi-camera ingest, metadata indexing, or real-time analytics pipelines where sustained I/O matters.
• U.3 Form Factor: Backward-compatible connector design supports both NVMe and SAS protocols, so if your platform supports U.3, you're not locked into one protocol family. This flexibility extends the drive's useful life across infrastructure refresh cycles.
• SFF Package (Small Form Factor): Compact physical footprint (2.5-inch equivalent) fits standard server drive bays without adapter complexity—saves rack real estate and simplifies cabling vs. 3.5-inch alternatives.
• High-Performance Mixed-Use Classification: Rated for mixed read/write workloads typical of active surveillance systems, metadata databases, and transactional queries—not optimized for write-only archive or read-only cold storage roles where single-use-case SSDs might offer marginal cost savings.
• Basic Carrier (BC) Design: HPE's minimal-overhead carrier format reduces weight and integration complexity compared to fully managed or encrypted variants, ideal for environments where a standard SSD interface and standard firmware are sufficient.

Integration & Compatibility

The P78801-B21 (often searched as P78801 B21) integrates into any HPE server or third-party system with a U.3-capable slot. Confirm your platform's firmware supports NVMe and U.3 hot-swapping before deployment. The drive arrives factory-new and operates at standard industrial temperatures; verify thermal headroom in your chassis if you're pairing it with other high-TDP components. No special drivers are required for UEFI/BIOS recognition on modern platforms.

Storage Considerations

At 3.2TB, this is a single-point-of-failure unit—always implement RAID 1, RAID 5, or RAID 6 at the server or NVR layer if your SLA requires uptime. Surveillance deployments often benefit from tiered storage (hot NVMe tier for current footage, warm SSD tier for recent archives, cold HDD tier for long-term retention), so use this drive for the active ingest and query layer, not sole archive.

What's in the Box

The HPE P78801-B21 arrives as a factory-sealed drive with basic carrier pre-installed. No mounting kit, no cables, or additional accessories are included. Installation requires only a U.3 slot and standard server power/thermal management.

Frequently Asked Questions

Q: What warranty does the HPE P78801-B21 carry?

A: Warranty information was not provided in the available product documentation. Contact your HPE sales representative or channel partner for specific warranty terms on this SKU.

Q: Is the P78801-B21 NDAA Section 889 compliant?

A: NDAA compliance status is not stated in the product specification. Verify directly with HPE if this is a regulatory requirement for your deployment.

Q: Can I use the P78801-B21 in non-HPE servers?

A: Yes, provided the server has a U.3 slot and current firmware that recognizes NVMe. The U.3 interface is an open standard, but always test compatibility in a non-critical environment first.

Q: How much faster is Gen4 vs. Gen3 for video workloads?

A: PCIe Gen4 offers roughly 2x the peak bandwidth of Gen3 (7.4 GB/s vs. 3.5 GB/s). For multi-camera surveillance and real-time indexing, this reduces I/O wait times and supports higher concurrent client connections to recorded footage.

Q: What operating temperature range does the P78801-B21 support?

A: Operating temperature specifications were not included in the available product data. Consult the HPE datasheet or contact support for thermal operating limits.

James Everett

I'm evaluating the HPE P78801-B21 for a surveillance storage refresh, and the PCIe Gen4 interface is the headline spec here. At 7.4 GB/s peak bandwidth, this drive cuts the I/O bottleneck that older Gen3 architectures impose when you're juggling multi-camera ingest, forensic playback, and metadata queries simultaneously. The 3.2TB capacity is a solid mid-range fit for surveillance backends handling 40-50 cameras at mixed bitrates.

Technical Highlights:

• PCIe Gen4 NVMe: Theoretical throughput of 7.4 GB/s—roughly double Gen3—matters when your surveillance backend is reading archived footage for forensic export while simultaneously writing fresh ingest streams from a 30+ camera cluster.
• U.3 Form Factor with SFF Package: The SFF physical footprint means no adapter complexity and standard 2.5-inch drive bay compatibility; the U.3 connector's backward compatibility with SAS gives you protocol flexibility if you're mixing SSD and HDD tiers in the same enclosure.
• 3.2TB Capacity for Mixed-Use Workloads: Holds roughly 2,000 hours of 1080p H.265 surveillance footage, making it appropriate for active hot-tier storage in tiered NVR architectures where you want 1-2 months of recent history on fast SSD and older data on slower, cheaper HDD.

Deployment Considerations:

• Confirm your server or NVR platform has U.3 firmware support before purchasing—some older HPE and third-party systems recognize U.3 slots but require BIOS updates to enable hot-swap or RAID participation.
• This is a single drive, so plan for RAID 1, 5, or 6 at the platform layer; no onboard redundancy means a single failure loses data until rebuild completes, which matters in 24/7 surveillance deployments where downtime has compliance or security implications.

The P78801-B21 shines in medium-to-large surveillance clusters running real-time analytics or forensic playback demands on top of live ingest—it's the right move for a hot tier in a tiered NVR, not a replacement for dedicated archive SSDs in cold storage roles.