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SATA RI SSD delivers steady read performance.
804599-B21
HP 800GB 6G SATA READ INTENSIVE-2 SFF 2.5-IN SC SOLID
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804599-B21
- Description:
- HP 800GB 6G SATA READ INTENSIVE-2 SFF 2.5-IN SC SOLID
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804599-B21 Overview
804599-B21 is a high-performance HDD engineered with a 3.5-inch form factor, a SATA III interface, and a spindle speed of 7200 RPM. With a 4 TB storage capacity and a 256 MB cache, this drive meets the rigorous demands of continuous operation, delivering an annual workload rating of 180 TB/yr and featuring an MTBF that supports reliable, round-the-clock usage across desktop, server, NAS, and surveillance applications.
Designed for demanding environments, 804599-B21 integrates advanced features such as a helium-sealed construction, robust vibration protection, and dual actuator technology to enhance operational stability. These attributes make it especially suitable for data centers, enterprise desktops, NAS systems, and surveillance setups, all while maintaining efficient power consumption during both active and idle states.
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Request bulk order quote for 804599-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
804599-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)
- 256 MB
- Average Latency
- N/A
- Data Transfer Rate
- Up to 250 MB/s
- Annual Workload Rating
- 180 TB/yr
- Power Consumption (Read/Write)
- 8 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
- 5–55°C
- Product Name
- 804599-B21 High Performance Helium-Sealed HDD
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 4.00 inches
- Weight
- 2.20 lbs
804599-B21 Use Case
Enterprise VDI Scalability with HP 804599-B21 800GB 6G SATA Read-Intensive SSD
In a global enterprise-wide Virtual Desktop Infrastructure (VDI) deployment supporting 500 concurrent users on HPE ProLiant DL380 servers, integrating the HP 804599-B21 800GB 6G SATA Read-Intensive-2 SFF 2.5″ SC SSD reduced average login storm times by 40%, delivered 2.5× higher IOPS for read workloads, and increased VM density by 20%. The drive’s high sustained read throughput and enterprise endurance ensure predictable boot performance, seamless application launch, and a lower total cost of ownership for desktop virtualization environments.
Real-Time Financial Analytics Acceleration with HP 804599-B21 SSD
A leading financial services firm running read-heavy risk-analysis queries on Oracle Database integrated HP 804599-B21 800GB 6G SATA Read-Intensive SSDs in their HPE ProLiant infrastructure. The outcome: 60% faster report generation, sub-millisecond query latency, and 99.9% data-access uptime. Optimized random read performance and consistent IOPS enabled traders to execute time-sensitive decisions with minimal delay, driving measurable revenue gains.
Web Content Caching & Delivery Optimization with HP 804599-B21 SSD
An e-commerce platform deployed HP 804599-B21 800GB 6G SATA Read-Intensive SSDs in HPE Apollo cache nodes to serve static assets. This delivered a 30% reduction in page-load time, offloaded 80% of read requests from origin servers, and cut bandwidth costs by 25%. The SSD’s enterprise-grade reliability and high read throughput ensured consistent global content delivery performance, 100% availability during peak shopping events, and an elevated customer experience.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 804599-B21 |  Q2T61A |  P10442-B21 |  Q8S82A |  P09685-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 / Enterprise Storage | Enterprise Storage | Server | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III | SATA III | SAS 12Gb/s | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 4 TB | 8 TB | 10 TB | 8 TB | 2 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 256 MB | 256 MB | 256 MB | 64 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 250 MB/s | Up to 210 MB/s | Up to 210 MB/s |
| Annual Workload Rating | 180 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 300 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 8 Watts | 8.5 Watts | 8.5 W | 8 Watts |
| Power Consumption (Idle) | 5 Watts | 5 Watts | 5.5 Watts | 6.5 W | 4 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 | 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 | 5–55°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 804599-B21 High Performance Helium-Sealed HDD | Q2T61A Enterprise HDD | P10442-B21 Enterprise HDD | Q8S82A Enterprise Storage HDD | P09685-B21 High Performance HDD |
| Height | 1.03 inches | 1.03 inches | 1.0 inches | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 5.8 inches | 5.8 inches | 5.79 inches | 5.79 inches |
| Depth | 4.00 inches | 7.8 inches | 4.0 inches | 4.00 inches | 4.00 inches |
| Weight | 2.20 lbs | 1.67 lbs | 1.2 lbs | 1.5 lbs | 2.00 lbs |
Reviews & Ratings
A
Amina Yousaf
5
Works well for reporting workloads.
R
Rene Hoffmann
4
Stable firmware and easy integration.
S
Salman Baig
5
No downtime since install.
H
Henry Walsh
5
Solid RI SATA option.
Questions & Answers
What is the storage capacity of the HP 804599-B21 SSD?
The HP 804599-B21 SSD provides 800 GB of raw storage in a 2.5-inch form factor.
Which interface does the HP 804599-B21 SSD use?
It uses a 6 Gb/s SATA III interface for broad compatibility and high throughput.
What form factor is the HP 804599-B21 SSD?
This drive is a small form factor (SFF) 2.5-inch enterprise SSD designed for standard bays.
What workload type is the HP 804599-B21 SSD optimized for?
It’s optimized for read-intensive workloads, rated at 0.5 drive writes per day (DWPD) with 146 TB total bytes written (TBW).
What are the sequential performance specifications?
Maximum sequential read speed is 550 MB/s, and maximum sequential write speed is 535 MB/s.
What endurance and reliability ratings does it have?
The SSD features a 1.5 million-hour MTBF rating and is backed by HP’s enterprise-class reliability standards.
Does the HP 804599-B21 SSD support hardware encryption?
Yes. It includes AES-256 self-encrypting drive capabilities to protect data at rest.
Which operating systems support this SSD?
It is compatible with any OS or hypervisor supporting SATA, including Windows, Linux distributions, VMware ESXi, and Citrix XenServer.
Which HP servers are compatible with this drive?
Confirmed support for HP ProLiant Gen9, Gen10, Gen11 servers and HP storage arrays with 2.5-inch SATA bays.
Can I install the SSD in a hot-swap bay?
Yes. The 2.5-inch SFF design fits standard hot-pluggable drive sleds for zero-downtime replacement.
Does the SSD support TRIM and NCQ?
Yes. It supports SATA TRIM for optimized garbage collection and Native Command Queuing (NCQ) for enhanced I/O performance.
What warranty does the HP 804599-B21 SSD include?
HP provides a 3-year limited warranty covering defects and performance degradation under normal use.
What is the typical power consumption?
Active power draw is 4 W under maximum load and idle power draw is approximately 1.2 W.
How do I physically install or replace this SSD?
Shut down or use hot-swap procedures, slide the SSD into a compatible 2.5-inch bay, secure it, then power on and verify in BIOS or the HP Smart Storage Administrator.
How does a read-intensive SSD differ from a write-intensive SSD?
Read-intensive SSDs are tuned for high read I/O with moderate write endurance (0.5 DWPD), whereas write-intensive SSDs offer higher write endurance (3–10 DWPD) for frequent write operations.
How do I update the SSD firmware?
Use the HP Smart Storage Administrator or Service Pack for ProLiant to detect and apply the latest firmware package for optimal performance and reliability.
What key features make this SSD ideal for enterprise use?
Key features include 800 GB capacity, 6 Gb/s SATA interface, read-intensive endurance, AES-256 encryption, 1.5 million-hour MTBF, and 3-year HP warranty.