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Excellent write-intensive SSD. Handles heavy workloads without performance drops.
P04541-B21
HPE 400GB SAS 12G Write Intensive SFF (2.5in) SC 3yr Wty Dig...
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P04541-B21
- Description:
- HPE 400GB SAS 12G Write Intensive SFF (2.5in) SC 3yr Wty Digitally Signed Firmware SSD
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- List Price:
$2,357.15
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P04541-B21 Overview
P04541-B21 is a high-performance HDD engineered for enterprise storage applications. Built in a 3.5-inch form factor, this drive features a SATA III interface and delivers a reliable 7200 RPM spindle speed. It offers a robust 10 TB capacity with a 256 MB cache, an annual workload rating of 550 TB/yr, and an MTBF of 1,000,000 hours, ensuring dependable 24/7 operation rated at 8,760 hours per year.
Designed for diverse use cases including data centers, desktops, NAS, and surveillance systems, P04541-B21 combines excellent power efficiency—with 8.5 Watts for read/write operations and 6.0 Watts during idle—with advanced features such as a helium-sealed enclosure and dual actuator technology. Its precise engineering and vibration protection make it especially suitable for multi-bay deployments in demanding enterprise environments.
P04541-B21 price is $612.86, a 74% saving from the Hpe list price of $2,357.15. P04541-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for P04541-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
P04541-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
- 10 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)
- 6.0 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
- P04541-B21 Enterprise HDD
- Height
- 1.03 inches
- Width
- 4.00 inches
- Depth
- 5.79 inches
- Weight
- 2.2 lbs
P04541-B21 Use Case
High-Frequency Trading Acceleration with HPE P04541-B21 400GB SAS 12G Write-Intensive SSD
In a global equities trading firm running sub-millisecond order engines, the P04541-B21-HPE 400GB SAS 12G Write-Intensive SFF SSD with digitally signed firmware delivers consistent low-latency writes under sustained I/O. By replacing legacy HDD arrays, the firm achieved a 35% increase in transaction throughput and met regulatory SLA targets for order execution times, while benefiting from the 3-year HPE warranty and enterprise-grade data integrity.
Virtual Machine Boot-Pool Optimization in Enterprise Cloud Environments
A managed services provider hosts 1,200 VMs per cluster and experiences I/O bottlenecks during mass reboots. Deploying HPE P04541-B21 400GB SAS 12G Write-Intensive SSDs for boot volumes reduced boot-storm latency by 50% and cut hypervisor I/O waits by 40%. The SFF form factor and digitally signed firmware ensure secure, high-availability infrastructure backed by HPE’s 3-year warranty.
Real-Time Log Analytics for Telecom Network Monitoring
A Tier-1 telecom operator processes 20TB of network logs daily for anomaly detection. Integrating the P04541-B21-HPE 400GB SAS 12G Write-Intensive SSD into the Hadoop ingestion tier accelerated write consolidation by 60%, enabling near real-time indexing and reducing batch-window duration from 4 hours to 1.5 hours. The SSD’s endurance rating and HPE digital firmware signing guarantee sustained performance and data authenticity.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 P04541-B21 |  832514-B21 |  872481-B21 |  870763-B21 |  P04533-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 |
| 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 | 10 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 | 256 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 210 MB/s |
| Annual Workload Rating | 550 TB/yr | 300 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8.5 Watts | 8 Watts | 8 Watts | 8.5 Watts | 9.5 Watts |
| Power Consumption (Idle) | 6.0 Watts | 3.5 Watts | 4 Watts | 4.5 Watts | 5.0 Watts |
| Encryption Support | No | 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 | Rotational Vibration Sensors |
| Operating Temperature | 5–55°C | 5–55°C | 5–60°C | 5–55°C | 5–60°C |
| Product Name | P04541-B21 Enterprise HDD | 832514-B21 Official HDD | 872481-B21 | 870763-B21 Enterprise Hard Drive | P04533-B21 Enterprise HDD |
| Height | 1.03 inches | 1.04 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 4.00 inches | 5.79 inches | 4.00 inches | 5.79 inches | 4.00 inches |
| Depth | 5.79 inches | 4.00 inches | 5.79 inches | 4.02 inches | 5.79 inches |
| Weight | 2.2 lbs | 1.65 lbs | 1.2 lbs | 1.2 lbs | 1.5 lbs |
Reviews & Ratings
U
Ubaid Shah
5
Reliable under constant writes. Ideal for databases.
L
Laura Kim
5
Fast, stable, and easy to deploy in HPE servers.
S
Saad Munir
5
Consistent IOPS and solid endurance so far.
B
Brian O'Leary
5
Enterprise SSD that delivers predictable results.
Questions & Answers
What is the storage capacity of the HPE P04541-B21 SSD?
The HPE 400GB SAS 12G Write Intensive SFF SSD (SKU P04541-B21) delivers 400GB of usable flash storage.
Which interface does the HPE 400GB SAS 12G Write Intensive SFF SSD use?
The SSD uses a 12Gb/s SAS interface for high-throughput, low-latency connectivity in enterprise servers.
What form factor is the SKU P04541-B21 drive?
This drive is a Small Form Factor (SFF) 2.5-inch SSD, ideal for dense server environments.
What endurance rating does the HPE 400GB Write Intensive SSD offer?
The drive is optimized for write-intensive workloads with up to 3 DWPD (Drive Writes Per Day) over a three-year warranty period.
Does the P04541-B21 SSD include digitally signed firmware?
Yes, it features Digitally Signed Firmware to ensure firmware authenticity and protect against unauthorized updates.
Is data encryption supported on the HPE 400GB SAS 12G SSD?
Yes, the drive supports Self-Encrypting Drive (SED) technology, meeting TCG Enterprise security standards.
What performance can I expect from the HPE 400GB SSD?
The SSD delivers up to 175,000 IOPS random read and up to 45,000 IOPS random write performance for demanding applications.
What warranty is included with SKU P04541-B21?
HPE provides a three-year limited warranty covering defects in materials and workmanship.
Which HPE servers are compatible with this 2.5-inch SSD?
This SFF SSD is certified for ProLiant Gen9 and Gen10 servers, as well as Synergy and Apollo systems.
Can I hot-swap the HPE 400GB SAS SSD?
Yes, the SSD supports hot-swap functionality for zero-downtime maintenance in RAID arrays.
What workloads are best suited for this HPE write-intensive SSD?
It’s ideal for database logging, virtualization, caching, and other write-heavy enterprise applications.
Do I need special drivers to use the HPE P04541-B21 SSD?
No additional drivers are required; standard HPE Smart Array controllers natively support this SSD.
What is the mean time between failures (MTBF) for this SSD?
The drive has an MTBF rating of 2 million hours for reliable 24/7 operation.
What is the power consumption of the HPE 400GB SAS SSD?
Typical active power consumption is 4.5W, with idle power of 3.0W to optimize energy efficiency.
Can this SSD be used in RAID configurations?
Yes, it is fully compatible with RAID 0, 1, 5, 6, 10, 50 and 60 configurations on HPE Smart Array controllers.
What operating temperature range does the P04541-B21 SSD support?
The drive operates reliably between 0°C and 70°C (32°F to 158°F) in server environments.