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Write intensive SSD delivered consistent results.
804668-B21
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HPE 400GB SATA 6G Write Intensive LFF (3.5in) SCC 3yr Warran...
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804668-B21
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- HPE 400GB SATA 6G Write Intensive LFF (3.5in) SCC 3yr Warranty SSD For Use with Gen8 Servers and Beyond
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804668-B21 Overview
804668-B21 is a high-performance HDD engineered for robust computing environments. It features a 3.5-inch form factor with a SATA III interface, operating at 7200 RPM to deliver reliable 4 TB storage capacity alongside a 128 MB cache. The drive’s annual workload rating of 300 TB/yr, combined with an MTBF of 1,000,000 hours and a rated reliability designed for continuous operation, makes it a dependable choice for demanding applications.
Designed with advanced features including a helium-sealed construction, vibration protection, and dual actuator technology, 804668-B21 is optimized for diverse use cases such as data centers, desktops, NAS, and surveillance systems. Its energy-efficient power consumption further enhances its suitability for both enterprise and cost-sensitive operations across server and storage platforms.
804668-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 804668-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
804668-B21 Specifications
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Desktop / Server / NAS / Surveillance
- Interface
- SATA III
- Form Factor
- 3.5-inch
- Storage Capacity
- 4 TB
- Spindle Speed (RPM)
- 7200 RPM
- Cache (Buffer Size)
- 128 MB
- Average Latency
- N/A
- Data Transfer Rate
- Up to 250 MB/s
- Annual Workload Rating
- 300 TB/yr
- Power Consumption (Read/Write)
- 8 Watts
- Power Consumption (Idle)
- 4 Watts
- Encryption Support
- AES 256-bit
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Single / Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Dual Actuator
- Operating Temperature
- 5–60°C
- Product Name
- 804668-B21 Enterprise HDD
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 4.00 inches
- Weight
- 3.5 lbs
804668-B21 Use Case
Accelerating OLTP Databases on HPE Gen8 Servers with 804668-B21 HPE 400GB SATA 6G Write-Intensive SSD
Scenario: A mid-size e-commerce business struggles with slow order-processing and inventory updates during peak sale events. Implementation: Integrate the HPE 804668-B21 400GB SATA 6G Write-Intensive LFF SSD into an HPE ProLiant Gen8 RAID-10 array to optimize write cache and sustain high IOPS. Outcome: Achieves 60% lower transaction latency, 2.5× higher throughput under load and maintains ACID compliance – boosting customer experience and protecting revenue during traffic surges.
Boosting VDI Performance in Remote Workforce Deployments with HPE 804668-B21 SSD
Scenario: A global enterprise rolls out 500 concurrent virtual desktops, experiencing slow boot storms and I/O contention on legacy drives. Implementation: Replace spinning disks with HPE 804668-B21 400GB SATA 6G Write-Intensive SSDs in each HPE ProLiant Gen8 host, configured for tiered caching. Outcome: Reduces boot-storm times by 50%, doubles IOPS per user and shrinks storage footprint by 40%, delivering seamless user experience and simplified management for IT operations.
Real-Time Big Data Ingestion and Analytics on HPE Gen8 with 804668-B21 SSD
Scenario: An IoT platform needs sustained write throughput for real-time sensor data ingest and analytics without batch delays. Implementation: Deploy HPE 804668-B21 400GB SATA 6G Write-Intensive SSDs as the hot tier in HPE ProLiant Gen8 servers, paired with a fast NVMe cache for mixed workloads. Outcome: Sustains 2,000 MB/s write bandwidth, delivers sub-second query response on streaming data and reduces total storage TCO by 30%, enabling instant insights and faster decision-making.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 804668-B21 |  Q2P86A |  816923-B21 |  877784-B21 |  819203-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 | Desktop / Server / NAS | 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 |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 4 TB | 4 TB | 4 TB | 4 TB | 8 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 128 MB | 128 MB | 128 MB | 256 MB | 512 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 210 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 300 TB/yr | 180 TB/yr | 300 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 8 Watts | 8 Watts | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 4 Watts | 6 Watts | 5 Watts | 4 Watts | 5 Watts |
| Encryption Support | AES 256-bit | No | AES 256-bit | AES 256-bit | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Drive Bays Supported | Single / Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Advanced Features | Dual Actuator | Dual Actuator | Rotational Vibration Sensors | Dual Actuator | Dual Actuator |
| Operating Temperature | 5–60°C | 5–55°C | 5–60°C | 5–55°C | 5–60°C |
| Product Name | 804668-B21 Enterprise HDD | Q2P86A High-Performance Enterprise HDD | 816923-B21 Enterprise HDD | 877784-B21 Enterprise Performance HDD | 819203-B21 Enterprise HDD |
| Height | 1.03 inches | 1.04 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 4 inches | 5.79 inches | 5.79 inches | 5.79 inches |
| Depth | 4.00 inches | 5.79 inches | 4.0 inches | 8.74 inches | 4.01 inches |
| Weight | 3.5 lbs | 3.3 lbs | 2.0 lbs | 2.2 lbs | 2.1 lbs |
Reviews & Ratings
S
Saad Khan
5
Good endurance for heavy workloads.
A
Alexei Morozov
4
Easy to deploy in existing setup.
R
Rameez Butt
5
Reliable SSD choice.
V
Ville Koskinen
4
Strong enterprise performance.
Questions & Answers
What is the storage capacity of the HPE 804668-B21 SSD?
The HPE 804668-B21 SSD provides 400 GB of usable capacity, ideal for write-intensive applications.
Which interface does the HPE 400 GB SATA 6G Write Intensive LFF SSD use?
This drive uses a SATA 6 Gb/s interface, ensuring broad compatibility and reliable data transfer rates.
What form factor is the HPE 804668-B21 SSD?
It is a Large Form Factor (LFF) 3.5-inch SSD designed for standard server bays.
For which workloads is this SSD optimized?
The SSD is write-intensive, optimized for high-transaction databases, logging, and other heavy-write applications.