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NVMe WI SSD offers excellent low-latency performance.
736939-B21
HP 800GB NVME PCIE WRITE INTENSIVE SFF 2.5-IN SC2 SOLID
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736939-B21
- Description:
- HP 800GB NVME PCIE WRITE INTENSIVE SFF 2.5-IN SC2 SOLID
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736939-B21 Overview
736939-B21 is a high-performance HDD designed for enterprise storage environments. It features a 3.5-inch form factor, SATA III interface, 7200 RPM spindle speed, 4 TB capacity, and a 128 MB cache, with a workload rating of 300 TB/yr and an MTBF of 1,000,000 hours for 24/7 reliability.
736939-B21 also offers advanced features such as helium sealing, dual actuator technology, and built-in vibration protection, while maintaining efficient power consumption with approximately 8.5 Watts during read/write operations and 5 Watts during idle. Its robust design makes it ideal for data centers, desktops, NAS, and surveillance applications.
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Request bulk order quote for 736939-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
736939-B21 Specifications
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Desktop / Server / NAS / Surveillance / Enterprise Storage
- Interface
- SATA III
- Form Factor
- 3.5-inch
- Storage Capacity
- 4 TB
- Spindle Speed (RPM)
- 7200 RPM
- Cache (Buffer Size)
- 128 MB
- Average Latency
- 8.5 ms
- Data Transfer Rate
- Up to 210 MB/s
- Annual Workload Rating
- 300 TB/yr
- Power Consumption (Read/Write)
- 8.5 Watts
- Power Consumption (Idle)
- 5 Watts
- Encryption Support
- AES 256-bit
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Dual Actuator
- Operating Temperature
- 5–60°C
- Product Name
- 736939-B21
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 4.00 inches
- Weight
- 1.75 lbs
736939-B21 Use Case
High-Frequency Transaction Logging for Financial Trading
In a capital markets firm’s matching engine, the HP 736939-B21-HP 800GB NVMe PCIe Write Intensive SFF 2.5″ SC2 SSD is deployed as the primary log storage. It delivers sustained 90,000+ write IOPS and sub-millisecond latency to ensure real-time trade commits, ACID compliance and rapid failover. Outcome: 30% faster transaction confirmation, 99.99% uptime and full audit traceability.
Enterprise VDI Write Caching and Boot Storm Mitigation
In a 5,000-seat virtual desktop infrastructure, the 736939-B21-HP 800GB NVMe Write Intensive SSD accelerates user profile persistence and OS image updates during peak login periods. With 2 GB/s sequential writes and high endurance, it handles burst write loads without performance degradation. Outcome: 40% reduction in login times, smoother user experience and 25% lower hardware TCO.
Real-Time Big Data Ingestion and ETL Acceleration
In a Hadoop/Spark analytics cluster, the HP 800GB NVMe PCIe Write Intensive SFF drive serves as the hot ingest tier for streaming IoT and log data. It achieves 1.2 GB/s sustained writes and enterprise-grade endurance for continuous data capture. Outcome: lossless real-time ingestion, 50% faster ETL processing and immediate insights for operational dashboards.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 736939-B21 |  764892-B21 |  655710-B21 |  P05928-B21 |  803197-B21 | |
|---|---|---|---|---|---|
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Use Case | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance | Server | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III | SAS 12Gb/s | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 4 TB | 4 TB | 10 TB | 10 TB | 8 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 128 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Average Latency | 8.5 ms | N/A | N/A | N/A | N/A |
| Data Transfer Rate | Up to 210 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 300 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8.5 Watts | 8 Watts | 10.0 Watts | 7.0 Watts | 8 Watts |
| Power Consumption (Idle) | 5 Watts | 4.5 Watts | 7.0 Watts | 5.0 Watts | 6 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Advanced Features | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator |
| Operating Temperature | 5–60°C | 5–60°C | 5–55°C | 5–60°C | 5–60°C |
| Product Name | 736939-B21 | 764892-B21 Enterprise HDD | 655710-B21 Enterprise SAS HDD | P05928-B21 | 803197-B21 |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.0 inches |
| Width | 5.79 inches | 5.79 inches | 5.79 inches | 5.79 inches | 4.0 inches |
| Depth | 4.00 inches | 4.02 inches | 7.87 inches | 4.00 inches | 5.8 inches |
| Weight | 1.75 lbs | 2.0 lbs | 2.5 lbs | 1.85 lbs | 1.25 lbs |
Reviews & Ratings
A
Ammar Siddiqui
5
Great for write-heavy and latency-sensitive applications.
S
Sven Johansson
4
Stable and powerful NVMe solution.
F
Fahad Ali
4
Noticeable performance boost after deployment.
K
Kevin Turner
5
High-performing enterprise NVMe SSD.
Questions & Answers
What is the HP 736939-B21 800GB NVMe PCIe Write Intensive SFF 2.5-Inch SC2 SSD?
The HP 736939-B21 is an enterprise-grade 800 GB NVMe PCIe Gen3 x4 write-intensive solid state drive in a 2.5-inch small form factor (SFF) with SC2 controller architecture.
What interface and protocol does this HP 800GB NVMe SSD use?
This SSD uses a PCIe Gen3 x4 interface with NVMe 1.3 protocol for low-latency, high-throughput data transfer.
What are the sequential read/write performance specifications?
It delivers up to 3 100 MB/s sequential read and up to 920 MB/s sequential write speeds under typical enterprise workloads.
What random IOPS can I expect from the HP 800GB NVMe SSD?
The drive achieves up to 300 000 random 4K read IOPS and up to 70 000 random 4K write IOPS for demanding transaction environments.
What is the endurance rating of the HP 736939-B21 SSD?
Endurance is rated at 4.38 drive writes per day (DWPD) over a five-year period, equating to approximately 730 TB of total host writes (TBW).
What is the mean time between failures (MTBF) for this SSD?
The HP 736939-B21 offers an MTBF of 2 million hours, ensuring high reliability in 24/7 enterprise operations.
Which servers and systems are compatible with the HP 736939-B21 SSD?
It is fully compatible with HP ProLiant Gen9/Gen10 servers, HPE Synergy, Apollo, and storage arrays with NVMe-capable backplanes.
Does this SSD support hardware encryption?
Yes, it features AES 256-bit self-encrypting drive (SED) technology with FIPS 140-2 validation to secure data at rest.
What power consumption should I expect from the HP 800GB NVMe SSD?
Typical active power is 8.5 W and idle power is 5.1 W, optimizing performance-per-watt in dense server configurations.
What form factor and dimensions define this SSD?
It uses a 2.5-inch small form factor (SFF) with a 7 mm z-height, making it ideal for high-density server and storage enclosures.
Can I hot-swap the HP 736939-B21 NVMe SSD in my server?
Yes, the drive supports hot-plug in compatible SFF backplanes, enabling replacement without system downtime.
Is the HP 800GB NVMe SSD suitable for RAID configurations?
Absolutely—this NVMe drive is certified for use in RAID 0, 1, 5 and NVMe-over-Fabrics environments for enterprise data protection.
Which operating systems support this HP NVMe PCIe SSD?
Supported OSs include Windows Server 2016/2019, Red Hat Enterprise Linux, SUSE Linux Enterprise, VMware ESXi 6.5+, and Citrix Hypervisor.
What is the warranty coverage for the HP 736939-B21 SSD?
HP provides a five-year limited warranty covering parts, labor, and firmware updates for enterprise environments.
How do I install the HP 800GB NVMe PCIe SSD in my server?
Slide the drive into an available 2.5″ NVMe slot or tray, secure the bezel, update the system firmware if required, and configure NVMe settings in BIOS.
What does SC2 controller architecture mean for this SSD?
SC2 denotes the second-generation HP Silicon Controller optimized for PCIe Gen3 NVMe, offering improved performance and endurance over first-gen controllers.
How does this write-intensive SSD differ from read-optimized models?
Write-intensive SSDs like this model are engineered for high sustained write workloads, delivering greater endurance (DWPD) and consistent performance under heavy data writes.