Trusted by the Highest-Stakes Buyers
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
2 In stock - Ready to Ship
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
3 Year Extended Warranty
Same-day Shipping
30-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
30-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
P04527-B21
HP 800GB 2.5-INCH SFF SAS MIXED-USE (MU) 12GB/S DS SSD
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.
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.
P04527-B21 price is is available on request. Get immediate quote.
Request bulk order quote for P04527-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
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.
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.
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.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| 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 |
| 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 |
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.
Consistent MU performance. Easy installation in SFF bays.
Stable SSD for varied enterprise workloads.
Predictable throughput and good responsiveness.
No firmware problems observed.
Solid mixed-use SAS option.
The HP P04527-B21 SSD offers 800 GB of usable storage in a 2.5-inch SFF form factor.
It uses a 12 Gb/s SAS dual-port interface for high-speed, enterprise-class connectivity.
Mixed-use indicates balanced read/write endurance, ideal for database, virtualization, and general-purpose workloads.
It delivers up to 1,900 MB/s sequential read and 1,200 MB/s sequential write performance.
Yes. The SSD supports hot-swap capability in compatible HP ProLiant and Apollo servers.
The drive is rated for 3 drive-writes per day (DWPD) over a five-year warranty period.
It offers 2 million hours MTBF and enterprise-grade power-loss protection.
Yes. It is validated for HP ProLiant Gen9/Gen10 servers and Apollo storage platforms.
It is compatible with major OSes including Windows Server, Linux distributions, VMware ESXi, and more.
Typical active power is 8 W, with 1 W idle power consumption.
This model does not include self-encrypting drive (SED) capabilities.
It is a 2.5-inch small form factor (SFF) drive with 15 mm Z-height.
Ideal for virtualization, database applications, email servers, and general-purpose computing.
It includes a five-year standard limited warranty with proactive support options.
Insert the drive into a compatible caddy, slide into the server bay, and verify detection in your management console.
Firmware updates are available through the HPE Support Center or integrated Lights-Out (iLO) interface.