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Midline SAS drive performed reliably for backups.
818367-B21
HPE 4TB SAS 12G Midline 7.2K LFF (3.5in) SC 1yr Warranty HDD...
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818367-B21
- Description:
- HPE 4TB SAS 12G Midline 7.2K LFF (3.5in) SC 1yr Warranty HDD For Use with Gen8/Gen9 or Newer
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818367-B21 Overview
818367-B21 is a high-performance HDD designed in a 3.5-inch form factor with a SATA III interface and a spindle speed of 7200 RPM. It offers a 4 TB storage capacity paired with a 256 MB cache, making it ideal for rigorous applications in data centers, desktops, NAS, and surveillance. This drive is engineered with a robust MTBF of 1,000,000 hours and reliability rated for demanding operations.
818367-B21 is optimized for a wide range of usage scenarios including desktop, server, NAS, and surveillance environments. It features advanced helium-sealed technology to reduce internal turbulence, active vibration protection, and dual actuator technology to enhance performance. With an annual workload rating of 180 TB/yr and energy-efficient power consumption at 7.5 Watts during read/write operations and 4 Watts when idle, this HDD is a reliable and efficient choice for critical storage applications.
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818367-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)
- 256 MB
- Average Latency
- N/A
- Data Transfer Rate
- Up to 210 MB/s
- Annual Workload Rating
- 180 TB/yr
- Power Consumption (Read/Write)
- 7.5 Watts
- Power Consumption (Idle)
- 4 Watts
- 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
- 818367-B21 4TB Helium Sealed Desktop HDD
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 4.01 inches
- Weight
- 1.6 lbs
818367-B21 Use Case
High-Capacity Backup & Archival Storage for Financial Institutions
A global bank deploys the HPE 818367-B21 4TB SAS 12G Midline HDD in its Gen9 backup array to meet stringent data-retention and audit requirements. By leveraging 7.2K RPM performance and enterprise-grade reliability, the bank achieves 120 TB nightly incremental backups with 99.99% availability, ensuring compliance with SEC and GDPR mandates while reducing total cost of ownership by 30% over three years.
Virtual Machine Datastore Expansion in Mid-Sized Enterprises
A growing professional services firm upgrades its HPE Gen8 virtualization cluster with 818367-B21 4TB SAS drives to expand VMware datastores. The additional capacity and 12 Gb/s throughput accelerate VM provisioning by 50% and support over 200 concurrent virtual machines. As a result, IT teams streamline service delivery, maintain sub-millisecond latency for mission-critical apps, and avoid costly forklift upgrades.
Media Asset Management & Post-Production Workflows
A film studio integrates HPE 818367-B21 4TB SAS Midline HDDs into its Gen9 storage shelves for high-volume 4K/8K footage repositories. The storage solution delivers sustained 1.2 GB/s read/write speeds across large sequential files, cutting edit-to-render times by 40%. Enhanced data integrity and a one-year HPE warranty ensure uninterrupted post-production pipelines, boosting throughput and meeting tight release deadlines.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 818367-B21 |  P09693-B21 |  P07928-B21 |  843264-B21 |  801882-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 | 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 | 4 TB | 8 TB | 4 TB | 12 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 128 MB | 256 MB | 256 MB | 256 MB |
| Average Latency | N/A | N/A | N/A | N/A | 4.17 ms |
| Data Transfer Rate | Up to 210 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 | 180 TB/yr | 180 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 7.5 Watts | 8 Watts | 8 Watts | 8 Watts | 9 Watts |
| Power Consumption (Idle) | 4 Watts | 5 Watts | 5 Watts | 4 Watts | 7 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 | 5–60°C | 5–60°C | 5–60°C | 5–55°C | 5–60°C |
| Product Name | 818367-B21 4TB Helium Sealed Desktop HDD | P09693-B21 Enterprise Helium-Sealed HDD | P07928-B21 Enterprise HDD | 843264-B21 Enterprise HDD | 801882-B21 Enterprise Helium-Sealed HDD |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.0 inches | 1.03 inches |
| Width | 5.79 inches | 5.78 inches | 5.79 inches | 5.8 inches | 4.00 inches |
| Depth | 4.01 inches | 8.74 inches | 4.00 inches | 8.1 inches | 5.79 inches |
| Weight | 1.6 lbs | 3.5 lbs | 1.2 lbs | 2.2 lbs | 1.80 lbs |
Reviews & Ratings
A
Adnan Sheikh
5
Stable speeds and easy integration.
S
Sergey Ivanov
4
OEM disk avoided compatibility issues.
H
Haseeb Malik
4
Good enterprise HDD.
A
Ari Leppanen
4
Consistent and dependable.
Questions & Answers
What are the key specifications of the HPE 4TB SAS 12G Midline 7.2K LFF HDD (SKU: 818367-B21)?
The HPE 818367-B21 is a 3.5-inch, 4 TB SAS 12 Gb/s Midline drive with a 7,200 RPM spindle speed, LFF form factor, and includes a one-year warranty.
Is the HPE 818367-B21 compatible with HPE Gen8, Gen9, or newer servers?
Yes, this HDD is fully supported in HPE ProLiant Gen8, Gen9 and newer server platforms.
What interface does the HPE 4TB SAS 12G Midline HDD use?
It uses a 12 Gb/s Serial Attached SCSI (SAS) interface for high-performance enterprise storage.
What is the spindle speed of this HPE Midline HDD?
The drive operates at a 7,200 RPM spindle speed for balanced performance and capacity.
What form factor does the HPE 818367-B21 HDD support?
The drive is a Large Form Factor (LFF) 3.5-inch hot-plug HDD.
How long is the warranty on the HPE 4TB SAS 12G Midline HDD?
This HDD comes with a standard one-year HPE limited warranty.
Can I hot-swap the HPE 4TB SAS 12G Midline HDD?
Yes, the HDD is designed for hot-plug operation in compatible HPE server drive bays.
What are the typical use cases for the HPE 4TB SAS 12G Midline HDD?
It’s ideal for bulk storage, backup/archive workloads, nearline data storage, and streaming applications.
Can the HPE 818367-B21 be integrated into hardware RAID arrays?
Yes, it supports RAID configurations when used with HPE Smart Array or compatible SAS controllers.
What is the power consumption of the HPE 4TB SAS 12G Midline HDD?
Power consumption is approximately 8.7 W idle and up to 10.5 W during active read/write operations.
What is the MTBF (Mean Time Between Failures) for this HDD?
The drive is rated for an MTBF of 1.4 million hours.
Does the HPE 4TB SAS 12G Midline HDD support encryption?
No, this model does not include self-encrypting drive (SED) functionality; consider HPE SED variants for encryption.
How do I install the HPE 818367-B21 HDD in my server?
Slide the HDD into an empty 3.5-inch LFF hot-swap bay on a supported Gen8/Gen9 or newer HPE server until it clicks, then secure the latch.
Can I mix this SAS HDD with SSDs in the same storage array?
Yes, you can mix SAS HDDs and SSDs, but performance tiers and controller settings must be configured accordingly.
How does SAS 12G differ from SAS 6G?
SAS 12 Gb/s delivers twice the bandwidth of SAS 6 Gb/s, enabling higher throughput and reduced bottlenecks.
Does the HPE 4TB SAS Midline HDD include the HPE SmartCarrier?
Yes, it includes the HPE SmartCarrier for tool-less installation and integrated drive status LEDs.
Where can I purchase the HPE 818367-B21 and claim warranty service?
Purchase from authorized HPE resellers or HPE Direct and access warranty support via the HPE Support Center portal.