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$1,729.92
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P04525-B21
HPE 400GB SAS 12G Mixed Use SFF (2.5in) SC 3yr Wty Digitally...
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
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.
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| 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 |
| 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 |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reliable SATA RI SSD. Good performance for read-focused tasks.
Easy deployment and stable operation.
Improved system response times.
Consistent and predictable performance.
Solid enterprise SSD option.
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.
The P04525-B21 model provides 400GB of usable flash storage, optimized for applications requiring a balance of performance and endurance.
This SSD supports a 12Gb/s SAS (Serial Attached SCSI) interface, delivering high throughput and low latency for server and storage systems.
The drive comes in a Small Form Factor (SFF), 2.5-inch chassis, enabling dense server and storage array deployments.
Mixed Use indicates the drive is engineered for workloads that combine read-intensive and write-intensive operations, such as databases, virtualization, and file servers.
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.
Digitally signed firmware ensures the drive boots only verified code, enhancing security by preventing unauthorized firmware modifications or malware injection.
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.
The P04525-B21 comes with a standard three-year limited warranty covering defects in materials and workmanship.
Yes, the SSD is fully compatible with HPE ProLiant Gen9 and Gen10 servers, HPE Apollo and HPE Synergy systems certified for SAS storage.
While optimized for HPE platforms, the 12Gb/s SAS interface also works in third-party servers and storage arrays that support standard SAS drives.
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.
No—this model does not include native self-encrypting drive (SED) capabilities; consider HPE Secure Encryption SSDs for hardware-based data protection.
Ideal for virtual desktop infrastructure (VDI), database applications, real-time analytics, and tier-1 mixed-I/O workloads requiring high endurance.
By delivering high IOPS, low latency and SAS 12G bandwidth, the HPE 400GB SSD accelerates application response times and reduces storage bottlenecks.
Support, firmware updates and diagnostic tools are available from the HPE Support Center online, using your product serial number for access.
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