United States$5,000,000+
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Derek Wilson
5
Reliable SATA RI SSD. Good performance for read-focused tasks.
P04525-B21
HPE 400GB SAS 12G Mixed Use SFF (2.5in) SC 3yr Wty Digitally...
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P04525-B21
- Description:
- HPE 400GB SAS 12G Mixed Use SFF (2.5in) SC 3yr Wty Digitally Signed Firmware SSD
- Rating:
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- Brand:
- Hpe
- Condition:
- Warranty:
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- List Price:
$1,729.92
- Price:
$536.2869% off
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P04525-B21 Overview
P04525-B21 is a high-performance HDD designed for demanding applications, featuring a 3.5-inch form factor with a SATA III interface and a spindle speed of 7200 RPM. This drive offers a robust 4 TB of storage capacity, paired with a 256 MB cache, ensuring efficient data handling and steady performance under heavy workloads.
P04525-B21 boasts a commendable annual workload rating of 300 TB/yr and a long MTBF, making it reliable for 24x7 operations in desktop, server, NAS, and surveillance environments. With advanced features such as helium-sealed construction, vibration protection, and dual actuator technology, this drive is engineered for critical data center usage as well as high-end desktop systems.
P04525-B21 price is $536.28, a 69% saving from the Hpe list price of $1,729.92. P04525-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for P04525-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
P04525-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
- 300 TB/yr
- Power Consumption (Read/Write)
- 6.7 Watts
- Power Consumption (Idle)
- 4.5 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
- P04525-B21
- Height
- 1.04 inches
- Width
- 5.79 inches
- Depth
- 7.78 inches
- Weight
- 3.3 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 P04525-B21 |  877776-B21 |  866844-B21 |  P06200-B21 |  K2P91A | |
|---|---|---|---|---|---|
| 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 |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 2.5-inch / 3.5-inch |
| Storage Capacity | 4 TB | 4 TB | 8 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 | 256 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 250 MB/s | Up to 210 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 300 TB/yr | 180 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 6.7 Watts | 8 Watts | 8 Watts | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 4.5 Watts | 5 Watts | 5 Watts | 5 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 | 5–55°C | 5–55°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | P04525-B21 | 877776-B21 High Performance HDD | Enterprise 866844-B21 8TB Helium-Sealed HDD | P06200-B21 Enterprise HDD | K2P91A Enterprise HDD |
| Height | 1.04 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1 in |
| Width | 5.79 inches | 5.79 inches | 5.79 inches | 4 inches | 5.8 in |
| Depth | 7.78 inches | 4.00 inches | 4 inches | 5.8 inches | 4 in |
| Weight | 3.3 lbs | 2 lbs | 1.8 lbs | 1.5 lbs | 1.5 lbs |
Reviews & Ratings
M
Mohib Ali
5
Easy deployment and stable operation.
C
Camila Torres
5
Improved system response times.
S
Salim Akbar
5
Consistent and predictable performance.
N
Norman Price
5
Solid enterprise SSD option.
Questions & Answers
What is the HPE 400GB SAS 12G Mixed Use SFF SSD (P04525-B21)?
The HPE 400GB SAS 12G Mixed Use SFF SSD (P04525-B21) is an enterprise-grade, 2.5-inch solid-state drive designed for mixed-use workloads, featuring a 12Gb/s SAS interface and digitally signed firmware.
What storage capacity does the P04525-B21 SSD offer?
The P04525-B21 model provides 400GB of usable flash storage, optimized for applications requiring a balance of performance and endurance.
Which interface does the HPE P04525-B21 support?
This SSD supports a 12Gb/s SAS (Serial Attached SCSI) interface, delivering high throughput and low latency for server and storage systems.
What form factor is the HPE 400GB SAS 12G Mixed Use SSD?
The drive comes in a Small Form Factor (SFF), 2.5-inch chassis, enabling dense server and storage array deployments.
What does 'Mixed Use' mean for this HPE SSD?
Mixed Use indicates the drive is engineered for workloads that combine read-intensive and write-intensive operations, such as databases, virtualization, and file servers.
What performance can I expect from this 400GB SAS SSD?
The HPE 400GB SAS 12G Mixed Use SSD delivers up to 155K random read IOPS and 38K random write IOPS, with sequential throughput up to 2.1GB/s.
What is digitally signed firmware and why is it important?
Digitally signed firmware ensures the drive boots only verified code, enhancing security by preventing unauthorized firmware modifications or malware injection.
What endurance rating does the P04525-B21 have?
This SSD is rated for up to 10 DWPD (Drive Writes Per Day) over a 3-year warranty, making it suitable for sustained mixed-use storage.
What warranty does the HPE 400GB SAS 12G Mixed Use SSD include?
The P04525-B21 comes with a standard three-year limited warranty covering defects in materials and workmanship.
Is the P04525-B21 compatible with HPE ProLiant servers?
Yes, the SSD is fully compatible with HPE ProLiant Gen9 and Gen10 servers, HPE Apollo and HPE Synergy systems certified for SAS storage.
Can I use this SSD in non-HPE environments?
While optimized for HPE platforms, the 12Gb/s SAS interface also works in third-party servers and storage arrays that support standard SAS drives.
How do I install the HPE 400GB SAS 12G Mixed Use SSD?
Insert the SSD into a compatible 2.5-inch SAS drive bay or caddy, secure it, and verify detection in the server’s HPE Smart Storage controller BIOS.
Does the P04525-B21 support hardware encryption?
No—this model does not include native self-encrypting drive (SED) capabilities; consider HPE Secure Encryption SSDs for hardware-based data protection.
What are the typical use cases for this mixed-use SSD?
Ideal for virtual desktop infrastructure (VDI), database applications, real-time analytics, and tier-1 mixed-I/O workloads requiring high endurance.
How does this SSD improve server performance?
By delivering high IOPS, low latency and SAS 12G bandwidth, the HPE 400GB SSD accelerates application response times and reduces storage bottlenecks.
Where can I get support and firmware updates for P04525-B21?
Support, firmware updates and diagnostic tools are available from the HPE Support Center online, using your product serial number for access.