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Read intensive SSD noticeably improved application responsiveness.
804602-B21
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HP 800GB 6G SATA READ INTENSIVE-2 SFF 2.5-IN 804599-B21
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804602-B21
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- HP 800GB 6G SATA READ INTENSIVE-2 SFF 2.5-IN 804599-B21
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804602-B21 Overview
804602-B21 is a high-performance HDD designed for demanding enterprise storage environments. This drive features a 3.5-inch form factor, SATA III interface, and a constant 7200 RPM spindle speed, providing a robust 4 TB of storage capacity paired with a 256 MB buffer. With an annual workload rating of 550 TB/yr and an MTBF of 1,200,000 hours, 804602-B21 is engineered for reliability and continuous operation in data centers, enterprise servers, and high-end NAS applications.
804602-B21 also offers advanced features including helium-sealed construction and rotational vibration sensors for enhanced durability and performance in multi-bay installations. Optimized for power efficiency with a read/write consumption of 8.5 Watts and 5.5 Watts when idle, this HDD is well-suited for use in server, desktop, and surveillance environments that demand rigorous performance and consistent reliability.
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804602-B21 Specifications
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Enterprise Storage
- Interface
- SATA III
- Form Factor
- 3.5-inch
- Storage Capacity
- 4 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
- 550 TB/yr
- Power Consumption (Read/Write)
- 8.5 Watts
- Power Consumption (Idle)
- 5.5 Watts
- Encryption Support
- AES 256-bit
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Rotational Vibration Sensors
- Operating Temperature
- 0–60°C
- Product Name
- 804602-B21 Enterprise HDD
- Height
- 1 inches
- Width
- 5.8 inches
- Depth
- 4 inches
- Weight
- 1.8 lbs
804602-B21 Use Case
Real-Time Big Data Analytics Acceleration in Enterprise Data Warehouses
In a global retail chain’s data warehouse environment, the HP 804602-B21 800GB 6G SATA Read Intensive drive powers high-concurrency BI queries against terabytes of transactional data. By delivering sustained 150 MB/s read throughput and enterprise-grade reliability, it cuts query latency by 50%, enabling near real-time dashboards, faster decision making and measurable ROI.
VDI Boot Storm Optimization for Healthcare Telemedicine
A large healthcare provider deploys HP 804602-B21 800GB 6G SATA Read Intensive drives in its virtual desktop infrastructure to handle concurrent boot storms for over 2,000 telemedicine terminals. The drive’s sub-2 ms read latency accelerates desktop provisioning by 40%, ensuring physicians access critical applications instantly, improving patient care and maximizing system uptime.
High-Performance E-Commerce Content Delivery
An online retail platform integrates HP 804602-B21 800GB 6G SATA Read Intensive drives in its web server clusters to serve millions of product images and catalogs. With optimized 6 Gb/s SATA speed and 24×7 reliability, page load times drop by 30%, boosting SEO rankings, reducing cart abandonment and driving higher conversion rates.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 804602-B21 |  Q2P81A |  843268-B21 |  861756-B21 |  804674-B21 | |
|---|---|---|---|---|---|
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Use Case | 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 / SAS 12Gb/s | SATA III | SATA III | SATA III |
| Form Factor | 3.5-inch | 2.5-inch / 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 4 TB | 10 TB | 4 TB | 4 TB | 8 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 256 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 250 MB/s | Up to 210 MB/s | Up to 210 MB/s | Up to 210 MB/s |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 180 TB/yr | 300 TB/yr | 180 TB/yr |
| Power Consumption (Read/Write) | 8.5 Watts | 8 Watts | 8 Watts | 8.0 Watts | N/A |
| Power Consumption (Idle) | 5.5 Watts | 5 Watts | 5 Watts | 5.0 Watts | N/A |
| Encryption Support | AES 256-bit | AES 256-bit | No | No | No |
| 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 | Rotational Vibration Sensors | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator |
| Operating Temperature | 0–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 804602-B21 Enterprise HDD | Q2P81A Enterprise HDD | 843268-B21 High-Performance SATA III HDD | 861756-B21 | 804674-B21 |
| Height | 1 inches | 1.03 inches | 1.04 inches | 1.0 inches | 1.0 inches |
| Width | 5.8 inches | 4 inches | 5.79 inches | 5.8 inches | 5.8 inches |
| Depth | 4 inches | 5.787 inches | 4.00 inches | 6.9 inches | 8.3 inches |
| Weight | 1.8 lbs | 1.2 lbs | 2.2 lbs | 2.0 lbs | 2.2 lbs |
Reviews & Ratings
B
Bilal Ahmed
5
Stable performance for database workloads.
Y
Yuki Tanaka
4
No compatibility issues during installation.
F
Fahad Iqbal
5
Consistent read speeds in production.
M
Mika Korhonen
4
Good SSD for read heavy tasks.
Questions & Answers
What is the storage capacity of the HP 804602-B21 SSD?
The HP 804602-B21 SSD provides 800 GB of usable storage in a standard 2.5-inch small form factor.
Which interface and data transfer rate does this drive support?
This SSD uses a SATA 6 Gb/s interface, fully compatible with SATA III host controllers.
What form factor does the HP 804602-B21 come in?
The drive is a 2.5-inch small form factor (SFF) SSD designed for half-height drive bays.
What are the sequential and random performance specifications?
It delivers up to 550 MB/s sequential read, 520 MB/s sequential write, and up to 90,000 random read IOPS.
Is this SSD optimized for specific workloads?
Yes, the HP 804602-B21 is designed for read-intensive workloads such as database queries, streaming, and content delivery.
What endurance rating does the drive have?
It is rated for 0.3 drive-writes per day (DWPD) over a five-year service life, suitable for read-centric applications.
How long is the warranty coverage?
This SSD includes a five-year limited warranty backed by HPE.
Which HPE servers support the 804602-B21 SSD?
It is compatible with ProLiant Gen8, Gen9, and Gen10 servers that feature 2.5-inch SATA drive bays.
Does the HP 804602-B21 support hot-swap or hot-plug?
Yes, it supports hot-plug installation and removal in compatible drive enclosures.
What is the power consumption of this SSD?
Typical active power is 4 W during read operations and idle power is approximately 2 W.
What are the operating and storage temperature ranges?
Operating temperature is 0 °C to 60 °C; storage temperature is −40 °C to 85 °C.
What is the drive’s mean time between failures (MTBF)?
The HP 804602-B21 SSD has an MTBF of 1.5 million hours.
How do I install the HP 804602-B21 in my server?
Slide the SSD into a compatible 2.5-inch bay or caddy, secure it, and ensure the SATA backplane is properly connected.
Does the package include a drive caddy or tray?
No; the SSD ships without a caddy—please use an existing HPE 2.5-inch drive tray for installation.
Is the SSD backwards compatible with SATA 3 Gb/s and 1.5 Gb/s?
Yes, it auto-negotiates down to SATA 3 Gb/s and 1.5 Gb/s transfer rates for legacy systems.
What monitoring and health-reporting features are supported?
It supports S.M.A.R.T. reporting and can be monitored via the HPE Smart Storage Administrator.