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SATA HDD bundle simplified large capacity deployment.
878566-B21
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HPE 10TB SATA 6G Midline (MDL) 7.2K LFF (3.5 in) LPC 1 yr wa...
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878566-B21
- Description:
- HPE 10TB SATA 6G Midline (MDL) 7.2K LFF (3.5 in) LPC 1 yr warranty helium 512e DS 6-pack FIO HDD bundle
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878566-B21 Overview
878566-B21 is a high-performance HDD engineered in a 3.5-inch form factor with a SATA III interface and a spindle speed of 7200 RPM. It offers a robust capacity of 6 TB paired with a 256 MB cache, an annual workload rating of 550 TB/yr, and an impressive MTBF of 1,000,000 hours for 24x7 reliable operation.
878566-B21 is designed for demanding environments such as data centers, enterprise servers, NAS appliances, and surveillance systems. It features advanced construction with helium-sealed internals, built-in vibration protection, and dual actuator technology while maintaining energy efficiency with a read/write power consumption of 7 W and an idle consumption of 4 W.
878566-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 878566-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
878566-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
- 6 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)
- 7 W
- Power Consumption (Idle)
- 4 W
- Encryption Support
- AES 256-bit
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Dual Actuator
- Operating Temperature
- 5–60°C
- Product Name
- 878566-B21 Enterprise HDD
- Height
- 1.03 inches
- Width
- 4 inches
- Depth
- 5.79 inches
- Weight
- 2.2 lbs
878566-B21 Use Case
Enterprise Backup & Archival Storage Optimization
In a mid-sized financial services firm, IT teams deploy the 878566-B21 HPE 10TB SATA 6G Midline 7.2K LFF HDD bundle across the on-premises backup server to consolidate daily snapshots and long-term archives. The high-density, helium-sealed design delivers 60TB in a single rack unit, reducing backup windows by 30% and cutting storage TCO by 25%, while 512e sector emulation ensures seamless integration with existing tape-based workflows.
High-Capacity Data Warehousing for BI Analytics
A retail analytics provider leverages the HPE 10TB SATA 6G Midline HDD 6-pack in their Hadoop cluster to store terabytes of transaction logs and customer behavior datasets. The 7.2K RPM performance paired with the low-power helium design accelerates bulk data ingest by 40% and lowers energy consumption by 20%, enabling real-time business intelligence queries and faster ROI on data warehousing investments.
Video Surveillance & Media Asset Management
A global security integrator integrates the 878566-B21 HDD bundle into its network-attached storage appliance for high-resolution camera feeds and media archives. With 10TB per drive and a 1-year HPE warranty, the solution supports continuous 4K recording across 200+ cameras, extends retention periods by 50%, and delivers reliable playback performance—ensuring compliance with industry regulations and minimizing data loss risk.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 878566-B21 |  875498-B21 |  833926-B21 |  881785-B21 |  857648-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 | Desktop / Server / NAS / Surveillance / 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 | 6 TB | 4 TB | 10 TB | 4 TB | 4 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 64 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 250 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) | 7 W | 8 Watts | 8.5 Watts | 8 Watts | 8.5 Watts |
| Power Consumption (Idle) | 4 W | 5 Watts | 6.5 Watts | 5 Watts | 5.2 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 | Rotational Vibration Sensors | Dual Actuator | Dual Actuator |
| Operating Temperature | 5–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 878566-B21 Enterprise HDD | 875498-B21 Enterprise HDD | HGST Ultrastar 10TB Enterprise HDD | 881785-B21 Enterprise HDD | 857648-B21 Enterprise Series SAS Hard Drive |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 4 inches | 4.00 inches | 4.00 inches | 5.8 inches | 5.79 inches |
| Depth | 5.79 inches | 5.78 inches | 5.78 inches | 7.2 inches | 4.01 inches |
| Weight | 2.2 lbs | 2.1 lbs | 1.90 lbs | 1.6 lbs | 3.64 lbs |
Reviews & Ratings
H
Haris Raza
4
All drives performed consistently.
O
Oscar Martinez
5
Good value multi drive solution.
T
Tahir Javed
5
Reliable and easy to manage.
A
Anders Holmgren
4
Enterprise ready storage bundle.
Questions & Answers
What is the HPE 878566-B21 10TB SATA Midline HDD bundle?
The HPE 878566-B21 is a 6-pack bundle of 10TB SATA 6Gb/s Midline 7,200 RPM LFF (3.5″) helium-filled hard drives with 512e sector formatting and a 1-year warranty.
What interface does this HDD bundle use?
Each drive in the bundle uses a standard SATA 6Gb/s interface for broad server and storage compatibility.
What is the rotational speed of these drives?
The drives spin at 7,200 RPM, striking a balance between performance and power efficiency.
What does helium-filled technology offer?
Helium fill reduces internal turbulence and friction, lowering power consumption and improving reliability.