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Mixed use SSD handled varied workloads well.
804634-B21
HPE 1.6TB SATA 6G Mixed Use LFF (3.5in) SCC 3yr Warranty SSD
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804634-B21
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- HPE 1.6TB SATA 6G Mixed Use LFF (3.5in) SCC 3yr Warranty SSD
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804634-B21 Overview
804634-B21 is a high-performance HDD engineered for demanding enterprise environments. This drive features a 3.5-inch form factor with a SATA III interface, a robust 7200 RPM spindle speed, an 8 TB storage capacity, a 256 MB cache, and an annual workload rating of 300 TB/yr. Its design underscores high reliability with an impressive MTBF and is rated for extensive hours of operation in both desktop and server settings.
804634-B21 also integrates advanced features including helium-sealed construction and built-in vibration protection, making it highly suitable for multi-bay configurations in data centers, desktops, NAS, and surveillance systems. With power consumption figures of approximately 8.0 Watts during active read/write operations and 4.0 Watts in idle mode, this HDD exemplifies an optimal balance between high performance and energy efficiency.
804634-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 804634-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
804634-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
- 8 TB
- Spindle Speed (RPM)
- 7200 RPM
- Cache (Buffer Size)
- 256 MB
- Average Latency
- N/A
- Data Transfer Rate
- Up to 250 MB/s
- Annual Workload Rating
- 300 TB/yr
- Power Consumption (Read/Write)
- 8.0 Watts
- Power Consumption (Idle)
- 4.0 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
- 804634-B21 Enterprise HDD
- Height
- 1.03 inches
- Width
- 4.01 inches
- Depth
- 5.79 inches
- Weight
- 1.7 lbs
804634-B21 Use Case
Enterprise Virtualization Consolidation with HPE 804634-B21 SSD
A mid-sized data center consolidates hundreds of virtual machines on HPE ProLiant servers using the 804634-B21 1.6TB SATA 6G Mixed Use LFF (3.5in) SSD’s 50K IOPS and mixed-use endurance. This solution boosts VM density, delivers sub-millisecond responsiveness, lowers storage TCO and is backed by a 3-year SCC warranty.
High-Performance OLTP Database Acceleration in Financial Services
A financial services firm deploys the HPE 804634-B21 1.6TB LFF SATA 6G Mixed Use SSD in mission-critical OLTP clusters to handle thousands of write-intensive transactions per second. By leveraging low latency and sustained throughput, the configuration increases transaction rates by 35%, meets strict SLAs and ensures data integrity under a 3-year SCC warranty.
Rapid Backup and Disaster Recovery for Hybrid Cloud Environments
An MSP integrates the HPE 804634-B21 3.5in LFF SATA 6G Mixed Use SSD into HPE StoreOnce appliances to accelerate backup staging and recovery operations. The drive’s balanced performance and reliability reduce RPOs by 60%, streamline business continuity workflows and deliver predictable support with a 3-year SCC warranty.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 804634-B21 |  881781-B21 |  737261-B21 |  872489-B21 |  Q2P81A | |
|---|---|---|---|---|---|
| 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 / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III | SATA III | SATA III | SATA III / SAS 12Gb/s |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 2.5-inch / 3.5-inch |
| Storage Capacity | 8 TB | 4 TB | 4 TB | 4 TB | 10 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 128 MB | 128 MB | 128 MB | 256 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Data Transfer Rate | Up to 250 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 | 300 TB/yr | 180 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8.0 Watts | 8 Watts | 8.5 Watts | 6.0 Watts | 8 Watts |
| Power Consumption (Idle) | 4.0 Watts | 5 Watts | 5.5 Watts | 4.0 Watts | 5 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 | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 804634-B21 Enterprise HDD | Enterprise Capacity HDD 4TB 7200RPM 881781-B21 | 737261-B21 | 872489-B21 Enterprise Helium-Sealed 4TB HDD | Q2P81A Enterprise HDD |
| Height | 1.03 inches | 1.03 inches | 1 in | 1.03 inches | 1.03 inches |
| Width | 4.01 inches | 5.8 inches | 4 in | 4.0 inches | 4 inches |
| Depth | 5.79 inches | 4 inches | 5.8 in | 5.8 inches | 5.787 inches |
| Weight | 1.7 lbs | 2.1 lbs | 1.6 lbs | 2.0 lbs | 1.2 lbs |
Reviews & Ratings
D
Daniyal Khan
5
Reliable performance in production.
P
Pierre Laurent
5
Installed without any issues.
S
Sameer Qazi
5
Good balance of speed and endurance.
O
Oskari Hiltunen
5
Solid enterprise SSD.
Questions & Answers
What is the storage capacity of the HPE 804634-B21 SSD?
The HPE 804634-B21 SSD offers 1.6TB of raw storage capacity for mixed-use enterprise applications.
Which interface does the HPE 804634-B21 SSD support?
This SSD uses a SATA 6Gb/s interface for broad compatibility with existing server and storage systems.
What form factor is the HPE 804634-B21 SSD?
The drive is a Large Form Factor (3.5-inch) SSD designed for LFF bays in HPE ProLiant servers.
What workload type is the HPE 804634-B21 SSD optimized for?
It is optimized for mixed-use workloads, balancing read/write operations in virtualized and database environments.
What is the sustained performance of this SSD?
You can expect up to 560 MB/s sequential reads and 520 MB/s sequential writes on typical mixed-use profiles.
What is the endurance rating of the HPE 804634-B21 SSD?
This SSD delivers up to 1 Drive Write Per Day (DWPD) over a 3-year period under mixed-use conditions.
Is the HPE 804634-B21 SSD compatible with HPE ProLiant servers?
Yes. It is fully tested and qualified for all HPE ProLiant Gen9 and Gen10 servers with LFF bays.
Does the SSD include firmware features for data integrity?
Yes. It features power-loss protection, end-to-end data path protection, and S.M.A.R.T. reporting for enhanced reliability.
What warranty does the HPE 804634-B21 SSD include?
HPE provides a 3-year limited warranty with 24×7 support and global parts replacement coverage.
How do I install the HPE 804634-B21 SSD in my server?
Slide the drive into any available LFF bay; the HPE SmartCarrier enables hot-plug insertion without system downtime.
Does the HPE 804634-B21 SSD support encryption?
This model supports TCG Enterprise self-encrypting drive (SED) standards with secure erase capabilities.
What is the expected MTBF of this SSD?
The Mean Time Between Failures (MTBF) rating is 2 million hours under standard operating conditions.
Can I update the firmware on the HPE 804634-B21 SSD?
Yes. Firmware updates are available through HPE Service Pack for ProLiant (SPP) or Smart Update Manager (SUM).
What power consumption does the HPE 804634-B21 SSD have?
It consumes approximately 6.5W during active operation and under 2W in idle state for energy efficiency.
Which workloads benefit most from this SSD’s mixed-use design?
Ideal for virtualization hosts, database servers, and general-purpose enterprise applications requiring balanced read/write performance.
Where can I purchase the HPE 804634-B21 SSD?
You can buy it directly from HPE’s official website, authorized resellers, or through HPE’s channel partner network.