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846528-B21
HP 3TB 12G SAS 7.2K RPM LFF 3.5IN SC MIDLINE HARD DRIVE
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.
846528-B21 is a high-performance HDD engineered for rigorous data operations, featuring a 3.5-inch form factor and a SATA III interface. It operates at 7200 RPM with a storage capacity of 4 TB, incorporates a 256 MB cache, and is rated for an annual workload of 550 TB/yr, ensuring dependable performance for enterprise environments.
846528-B21 is designed with advanced features such as a helium-sealed construction and dual actuator technology for optimal vibration protection. With efficient power consumption in both read/write and idle modes, this drive is well-suited for data centers, desktop systems, NAS, and surveillance applications.
846528-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 846528-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
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| 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 | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III | SATA III | SATA III | SAS 12Gb/s |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 4 TB | 12 TB | 4 TB | 4 TB | 10 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Data Transfer Rate | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 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 Watts | 8 Watts | 8 Watts | 8 Watts | 9 Watts |
| Power Consumption (Idle) | 4 Watts | 5 Watts | 5 Watts | 5 Watts | 6 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 | 5–60°C | 5–60°C | 5–55°C | 5–60°C |
| Product Name | 846528-B21 | 765424-B21 High Performance Enterprise HDD | 861676-B21 Enterprise HDD | 861752-B21 Enterprise HDD | 864262-B21 Enterprise HDD |
| Height | 1.0 inches | 1.03 inches | 1.03 inches | 1.03 | 1.03 inches |
| Width | 5.8 inches | 5.79 inches | 4 inches | 4.00 | 5.79 inches |
| Depth | 5.8 inches | 8.26 inches | 5.78 inches | 5.79 | 4.00 inches |
| Weight | 2.2 lbs | 2.3 lbs | 1.5 lbs | 3.25 | 3.00 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.
SAS midline drive delivered stable performance.
Consistent throughput for backups.
OEM firmware ensured compatibility.
Good capacity upgrade.
Dependable enterprise HDD.
This drive delivers 3 TB of storage, ideal for midline data archiving, backups and general-purpose enterprise workloads.
It features a 12 Gb/s SAS interface, offering high-throughput data transfers and robust connectivity with HP servers and arrays.
The drive spins at 7 200 RPM, providing a balance of performance and energy efficiency for midline storage applications.
This model is a Large Form Factor (LFF) 3.5-inch drive, compatible with standard HP SAS drive bays in ProLiant servers and enclosures.
Yes. It is hot-pluggable, allowing installation or removal without powering down supported HP ProLiant servers and storage systems.
It excels at nearline storage, data archiving, backup, and other general-purpose enterprise applications requiring high capacity.
It’s fully compatible with HP ProLiant Gen8/Gen9 servers, HP 3PAR StoreServ arrays and other platforms supporting 12 Gb/s SAS drives.
This drive offers a Mean Time Between Failures (MTBF) of 1.2 million hours, delivering enterprise-grade reliability.
Yes. When used with HP Smart Array controllers, it supports RAID levels 0, 1, 5, 6, 10, 50 and 60.
The operating range is 5 °C to 55 °C (41 °F to 131 °F), ensuring stable performance in standard data center environments.
Typical power draw is 7.8 W during read/write operations and 3.5 W at idle, optimized for energy-efficient storage.
Yes. It’s backward compatible with 6 Gb/s SAS systems, though transfer speeds will cap at 6 Gb/s.
No. The 846528-B21 is a non-encrypted midline model. For encryption, select an HP Self-Encrypting Drive (SED) variant.
HP offers a 1-year limited warranty covering defects in materials and workmanship under normal operating conditions.
Slide the drive into an available HP 3.5-inch SAS bay until it clicks, securing the hot-plug connector to the backplane.
No. HP drives require server-specific caddies or trays. Mounting screws are not included; use compatible HP carriers.