United States$5,000,000+
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Ian Morrison
5
Write intensive SSD handled logs and databases well.
804642-B21
HP 200GB 6G SATA WRITE INTENSIVE-2 LFF 3.5-IN 804642-B21
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804642-B21
- Description:
- HP 200GB 6G SATA WRITE INTENSIVE-2 LFF 3.5-IN 804642-B21
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804642-B21 Overview
804642-B21 is a high-performance HDD designed for diverse environments including data centers, desktops, NAS, and surveillance applications. This drive features a 3.5-inch form factor with a SATA III interface, spinning at 7200 RPM to deliver robust performance; it offers a 4 TB storage capacity with a 64 MB cache, supports heavy workload operations rated at 550 TB/yr, and is engineered with exceptional reliability and an industry-leading MTBF, making it ideal for continuous 24/7 operation.
804642-B21 is optimized for efficiency with measured power consumption of 8.7 Watts during read/write and 6.1 Watts in idle mode. Advanced features such as a helium-sealed design, integrated vibration protection, and dual actuator technology further enhance its durability and performance, ensuring that this HDD meets the demanding needs of both enterprise and mixed-use deployments.
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804642-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)
- 64 MB
- Average Latency
- N/A
- Data Transfer Rate
- Up to 210 MB/s
- Annual Workload Rating
- 550 TB/yr
- Power Consumption (Read/Write)
- 8.7 Watts
- Power Consumption (Idle)
- 6.1 Watts
- Encryption Support
- No
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Dual Actuator
- Operating Temperature
- 5–55°C
- Product Name
- 804642-B21 Enterprise SATA HDD
- Height
- 1.0 inches
- Width
- 5.8 inches
- Depth
- 4.0 inches
- Weight
- 2.0 lbs
804642-B21 Use Case
Write-Intensive Transaction Logging for Financial Trading Platforms
In a high-frequency trading environment generating thousands of transactions per second, the 804642-B21 HP 200 GB 6G SATA Write Intensive-2 LFF 3.5-inch drive delivers sustained 200 MB/s sequential write performance and 2.4 Drive Writes Per Day (DWPD) endurance, ensuring zero data loss and 99.999% uptime for critical trade logs.
Optimized Virtual Desktop Infrastructure for Remote Workforce
In a global enterprise deploying hundreds of virtual desktops for remote employees, the 804642-B21 HP 200 GB 6G SATA Write Intensive-2 LFF 3.5-inch drive accelerates boot storms with up to 40% faster login times and supports consistent write workloads, reducing end-user latency and lowering helpdesk support calls by 30%.
Rapid Backup and Recovery for SMB Data Centers
In a small-to-mid-sized business consolidating nightly backups on HPE ProLiant servers, the 804642-B21 HP 200 GB 6G SATA Write Intensive-2 LFF 3.5-inch drive achieves sustained 150 MB/s write throughput, shrinking backup windows by 60% and enabling full system restores within the target RTO to maintain business continuity.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 804642-B21 |  H6G52A |  P07924-B21 |  801884-B21 |  881781-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 | Desktop / Server / NAS / Surveillance / Enterprise Storage | 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 | 10 TB | 8 TB | 8 TB | 4 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 64 MB | 256 MB | 256 MB | 256 MB | 128 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Data Transfer Rate | Up to 210 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 210 MB/s |
| Annual Workload Rating | 550 TB/yr | 300 TB/yr | 300 TB/yr | 550 TB/yr | 300 TB/yr |
| Power Consumption (Read/Write) | 8.7 Watts | 8.5 Watts | 10 Watts | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 6.1 Watts | 5.0 Watts | 5 Watts | 6 Watts | 5 Watts |
| Encryption Support | No | AES 256-bit | AES 256-bit | No | 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 | 5–55°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 804642-B21 Enterprise SATA HDD | H6G52A Enterprise HDD | P07924-B21 Enterprise He-Sealed HDD | 801884-B21 Enterprise HDD | Enterprise Capacity HDD 4TB 7200RPM 881781-B21 |
| Height | 1.0 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.8 inches | 4.00 inches | 5.79 inches | 5.79 inches | 5.8 inches |
| Depth | 4.0 inches | 5.79 inches | 4.00 inches | 7.78 inches | 4 inches |
| Weight | 2.0 lbs | 2.20 lbs | 2.2 lbs | 2.2 lbs | 2.1 lbs |
Reviews & Ratings
T
Talha Qazi
4
Consistent write speeds.
S
Stefan M'ller
5
OEM firmware ensured stability.
K
Khalid Nawaz
5
Good endurance SSD.
R
Rami Koskela
4
Solid enterprise option.
Questions & Answers
What is the storage capacity of the HP 804642-B21 drive?
The HP 804642-B21 drive offers 200 GB of usable storage capacity, optimized for high-write workloads.
Which interface does the HP 804642-B21 use?
This drive uses a 6 Gb/s SATA interface for fast data transfers and broad server compatibility.
What is the physical form factor of the HP 804642-B21 drive?
The HP 804642-B21 is a 3.5-inch (LFF) drive designed for HP ProLiant and Apollo server bays.
What does “write-intensive” classification mean?
Write-intensive classification indicates the drive is rated for heavy write workloads up to 10 drive writes per day (DWPD).
Which workloads are best suited for this write-intensive drive?
This drive excels in database logging, high-transaction applications, virtual desktop infrastructures, and caching layers.
Is the HP 804642-B21 compatible with ProLiant and Apollo servers?
Yes, it is fully compatible with HP ProLiant Gen8/9/10, Apollo 2000/4000, and select Synergy storage enclosures.
How do I install the HP 804642-B21 drive?
Simply insert the drive into an available 3.5″ hot-swap bay, secure the sled, and HP Smart Array controllers will auto-detect it.
What are the key performance specifications?
It delivers up to 205 MB/s sustained sequential throughput and 88,000 random 4 K IOPS under typical workloads.
What is the drive’s endurance rating and MTBF?
The drive is rated for 10 DWPD and has an MTBF of 2 million hours for reliable continuous operation.
Does the HP 804642-B21 support S.M.A.R.T. monitoring?
Yes, it supports industry-standard S.M.A.R.T. attributes for proactive health monitoring and reporting.
Can I use this drive in hardware RAID configurations?
Yes, the drive is certified for use in HP Smart Array and third-party RAID controllers for data protection.
What warranty does HP provide for this drive?
HP offers a standard three-year limited warranty, including parts, labor, and on-site support.
Does the drive require special firmware or updates?
No special firmware is required; it is factory-tested with HP Gen8/9/10 firmware profiles for out-of-the-box compatibility.
What is the typical power consumption?
The drive consumes approximately 7.5 W active and 5.5 W idle, optimizing energy use in dense server configurations.
Is the HP 804642-B21 hot-swappable?
Yes, the drive supports hot-swap functionality, enabling drive replacement without shutting down the server.
How can I purchase the HP 804642-B21 and what is the price range?
You can purchase through authorized HP resellers or the HP Store; pricing varies by region and volume but typically starts around $200–$250 USD.