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Brandon Holt
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Consistent MU performance. Easy installation in SFF bays.
P04527-B21
HP 800GB 2.5-INCH SFF SAS MIXED-USE (MU) 12GB/S DS SSD
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P04527-B21
- Description:
- HP 800GB 2.5-INCH SFF SAS MIXED-USE (MU) 12GB/S DS SSD
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P04527-B21 Overview
P04527-B21 is a high-performance HDD designed for a variety of critical applications. This drive features a 3.5-inch form factor with dual compatibility for 2.5-inch environments, an interface that supports both SATA and SAS protocols, and a robust spindle speed of 7200 RPM. It offers a substantial 4 TB of storage capacity with a generous 128 MB cache, making it ideal for demanding workloads in data centers, desktops, NAS systems, and surveillance environments.
Engineered for enterprise reliability, the P04527-B21 boasts an annual workload rating of 550 TB/yr and is rated for high reliability with a firm MTBF that ensures rated hours per year of dependable operation. This helium-sealed drive includes advanced features like dual actuator technology and vibration protection, all while maintaining efficient power consumption at 8.0 Watts during read/write operations and 6.0 Watts in idle. Its robust design is optimized for multi-bay configurations in desktop, server, NAS, and surveillance applications.
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P04527-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)
- 128 MB
- Average Latency
- 4.16 ms
- Data Transfer Rate
- Up to 210 MB/s
- Annual Workload Rating
- 550 TB/yr
- Power Consumption (Read/Write)
- 8.0 Watts
- Power Consumption (Idle)
- 6.0 Watts
- Encryption Support
- AES 256-bit
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Dual Actuator
- Operating Temperature
- 0–60°C
- Product Name
- P04527-B21 Enterprise Helium-Sealed 4TB HDD
- Height
- 1.00 inches
- Width
- 5.80 inches
- Depth
- 4.00 inches
- Weight
- 1.80 lbs
P04527-B21 Use Case
Enterprise Virtualization Infrastructure Acceleration
Scenario: A global cloud service provider equips HP ProLiant DL380 servers with P04527-B21-HP 800GB 2.5-inch SFF SAS Mixed-Use (MU) 12Gb/s DS SSDs to host high-density Windows and Linux VMs. The drives deliver sustained 120K IOPS and sub-millisecond latency under mixed read/write workloads. Outcome: Achieved a 30% higher VM consolidation ratio, reduced storage latency by 25%, and optimized rack-space efficiency to lower total cost of ownership.
Mission-Critical OLTP Database Acceleration
Scenario: A financial services firm integrates P04527-B21-HP 800GB 2.5-inch SFF SAS MU SSDs into its HP 3PAR storage arrays for real-time trade processing and order management. The enterprise-grade SSDs sustain 12Gb/s throughput with high write endurance during market peaks. Outcome: Reduced transaction latency to under 1 ms, boosted throughput to 200K transactions per second, and maintained 99.999% SLA uptime for mission-critical operations.
Real-Time 4K/8K Video Rendering & Streaming
Scenario: A media production studio deploys P04527-B21-HP 800GB 2.5-inch SFF SAS Mixed-Use SSDs in HP Z4 workstations and rack servers to accelerate 4K/8K video editing, rendering, and live preview workflows. With 1.2 GB/s sequential throughput and industry-leading random I/O performance, large media assets load instantly. Outcome: Cut render times by 40%, enabled seamless real-time timeline scrubbing, and accelerated project delivery schedules.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| P04527-B21 |  872479-B21 |  872394-B21 |  Q8S83A |  877782-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 | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SAS 12Gb/s | 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 | 8 TB | 4 TB | 4 TB | 8 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 128 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Average Latency | 4.16 ms | 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 250 MB/s |
| Annual Workload Rating | 550 TB/yr | 300 TB/yr | 550 TB/yr | 180 TB/yr | 300 TB/yr |
| Power Consumption (Read/Write) | 8.0 Watts | 8 Watts | 8 Watts | 8 Watts | 8.5 Watts |
| Power Consumption (Idle) | 6.0 Watts | 5 Watts | 6 Watts | 4 Watts | 6.5 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 | 0–60°C | 5–60°C | 5–60°C | 5–60°C | 5–55°C |
| Product Name | P04527-B21 Enterprise Helium-Sealed 4TB HDD | 872479-B21 Enterprise Hard Drive | 872394-B21 Enterprise Helium Sealed HDD | Q8S83A Enterprise HDD | 877782-B21 High Efficiency Enterprise HDD |
| Height | 1.00 inches | 1.03 inches | 1.03 | 1.05 inches | 1 inches |
| Width | 5.80 inches | 4 inches | 4.00 | 5.8 inches | 5.79 inches |
| Depth | 4.00 inches | 5.79 inches | 5.79 | 8.2 inches | 8.74 inches |
| Weight | 1.80 lbs | 1.2 lbs | 2.20 | 2.3 lbs | 1.8 lbs |
Reviews & Ratings
J
Junaid Masood
4
Stable SSD for varied enterprise workloads.
E
Elena Russo
5
Predictable throughput and good responsiveness.
F
Farooq Hassan
5
No firmware problems observed.
M
Mitchell Grant
4
Solid mixed-use SAS option.
Questions & Answers
What is the capacity of the HP P04527-B21 SSD?
The HP P04527-B21 SSD offers 800 GB of usable storage in a 2.5-inch SFF form factor.
What interface does the HP 800 GB SAS MU SSD use?
It uses a 12 Gb/s SAS dual-port interface for high-speed, enterprise-class connectivity.
What does mixed-use (MU) mean for this SSD?
Mixed-use indicates balanced read/write endurance, ideal for database, virtualization, and general-purpose workloads.
How fast is the HP P04527-B21 SSD?
It delivers up to 1,900 MB/s sequential read and 1,200 MB/s sequential write performance.
Is the HP 800 GB SAS MU SSD hot-swappable?
Yes. The SSD supports hot-swap capability in compatible HP ProLiant and Apollo servers.
What is the endurance rating of this SSD?
The drive is rated for 3 drive-writes per day (DWPD) over a five-year warranty period.
What reliability specifications does the P04527-B21 SSD meet?
It offers 2 million hours MTBF and enterprise-grade power-loss protection.
Is this SSD compatible with HP servers?
Yes. It is validated for HP ProLiant Gen9/Gen10 servers and Apollo storage platforms.
What operating systems support the HP 800 GB SAS SSD?
It is compatible with major OSes including Windows Server, Linux distributions, VMware ESXi, and more.
What power consumption does the SSD require?
Typical active power is 8 W, with 1 W idle power consumption.
Does this SSD support data encryption?
This model does not include self-encrypting drive (SED) capabilities.
What form factor is the HP P04527-B21?
It is a 2.5-inch small form factor (SFF) drive with 15 mm Z-height.
What workloads is the mixed-use SSD best suited for?
Ideal for virtualization, database applications, email servers, and general-purpose computing.
What warranty does the HP 800 GB SAS MU SSD include?
It includes a five-year standard limited warranty with proactive support options.
How do I install the HP P04527-B21 in my server?
Insert the drive into a compatible caddy, slide into the server bay, and verify detection in your management console.
Where can I get firmware updates for this SSD?
Firmware updates are available through the HPE Support Center or integrated Lights-Out (iLO) interface.