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Dependable SATA midline drive suited for backups and file storage.
861750-B21
HPE 6TB SATA 6G Midline 7.2K LFF (3.5in) SC 1yr Wty 512e HDD
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861750-B21
- Description:
- HPE 6TB SATA 6G Midline 7.2K LFF (3.5in) SC 1yr Wty 512e HDD
- Rating:
Added to cart 28 times recently
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- Brand:
- Hpe
- Condition:
- Warranty:
- 3
- List Price:
$1,012.00
- Price:
$299.0070.5% off
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1
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861750-B21 Overview
861750-B21 is a high-performance HDD engineered for demanding environments. Designed as a 3.5-inch drive with a SATA III interface, it operates at 7200 RPM and offers an 8 TB capacity combined with a 256 MB cache. The drive is rated for a continuous annual workload of 300 TB/yr, backed by an MTBF of 1,200,000 hours and engineered for 24/7 reliability.
861750-B21 is purpose-built for versatile use across desktop, server, NAS, and surveillance applications. With power consumption figures of 8.0 Watts during read/write operations and 6.0 Watts at idle, the drive incorporates advanced features such as helium sealing, built-in vibration protection, and dual actuator technology—making it an ideal solution for high-density data centers, enterprise storage systems, and robust surveillance environments.
861750-B21 price is $299.00, a 70.5% saving from the Hpe list price of $1,012.00. 861750-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 861750-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
861750-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
- 8 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
- 300 TB/yr
- Power Consumption (Read/Write)
- 8.0 Watts
- Power Consumption (Idle)
- 6.0 Watts
- Encryption Support
- AES 256-bit
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Dual Actuator
- Operating Temperature
- 5–55°C
- Product Name
- 861750-B21
- Height
- 1.03 inches
- Width
- 4.00 inches
- Depth
- 5.79 inches
- Weight
- 1.80 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 861750-B21 |  K2R22A |  861683-B21 |  843268-B21 |  P09693-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 | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III | SAS 12Gb/s | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 8 TB | 10 TB | 4 TB | 4 TB | 4 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 256 MB | 128 MB | 128 MB | 128 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 210 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 300 TB/yr | 550 TB/yr | 300 TB/yr | 180 TB/yr | 180 TB/yr |
| Power Consumption (Read/Write) | 8.0 Watts | 8 Watts | 9 Watts | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 6.0 Watts | 5 Watts | 6 Watts | 5 Watts | 5 Watts |
| Encryption Support | AES 256-bit | No | AES 256-bit | No | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | No | 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 | 5–55°C | 5–60°C | 5–55°C | 5–60°C | 5–60°C |
| Product Name | 861750-B21 | K2R22A Enterprise HDD | 861683-B21 Enterprise Performance HDD | 843268-B21 High-Performance SATA III HDD | P09693-B21 Enterprise Helium-Sealed HDD |
| Height | 1.03 inches | 1.03 inches | 1 in | 1.04 inches | 1.03 inches |
| Width | 4.00 inches | 5.79 inches | 5.8 in | 5.79 inches | 5.78 inches |
| Depth | 5.79 inches | 4.00 inches | 4 in | 4.00 inches | 8.74 inches |
| Weight | 1.80 lbs | 2.2 lbs | 2.2 lbs | 2.2 lbs | 3.5 lbs |
Reviews & Ratings
F
Faisal Qureshi
5
Consistent speeds and quiet operation in production.
J
Jonas Weber
4
Good capacity upgrade without surprises.
H
Hamza Noor
5
Stable performance for non critical workloads.
P
Pieter van Dijk
5
Reliable everyday HDD.
Questions & Answers
What is the storage capacity of the HPE 861750-B21 HDD?
The HPE 861750-B21 offers 6 TB of raw storage capacity, ideal for high-density data environments.
Which interface does the HPE 6 TB SATA 6 G Midline HDD use?
This drive uses a SATA 6 Gb/s interface for reliable, high-speed data transfers.
What is the rotational speed of this HPE Midline HDD?
The HDD spins at 7,200 RPM, balancing performance and power efficiency for midline workloads.
What form factor does the HPE 861750-B21 support?
It features a 3.5-inch (LFF) form factor, compatible with standard server and storage enclosures.
Is the HPE 6 TB Midline HDD hot-swappable?
Yes, the drive supports hot-swap operation, enabling replacement without system downtime.
What warranty is included with SKU 861750-B21?
This HDD comes with a one-year limited hardware warranty backed by HPE support.
What sector format does the HPE 6 TB Midline HDD use?
It uses 512e sector emulation, offering compatibility with legacy and modern storage systems.
Which HPE servers are compatible with the 861750-B21 drive?
The drive is validated for HPE ProLiant Gen9/Gen10 servers and DL/ML storage enclosures.
What is the MTBF rating of the HPE 6 TB SATA Midline HDD?
The drive has a mean time between failures (MTBF) of 1.4 million hours.
What are the ideal use cases for a midline 7.2K HDD?
It’s optimized for nearline archival, backup, secondary storage and capacity-driven workloads.
How does the HPE Midline HDD differ from enterprise-class drives?
Midline HDDs prioritize capacity and cost efficiency over the higher IOPS and durability of enterprise models.
What is the sustained data transfer rate of this HDD?
It delivers up to 188 MB/s sustained sequential transfers for bulk data movement.
Can I use the HPE 6 TB SATA HDD in RAID configurations?
Yes, it is fully compatible with HPE Smart Array controllers for RAID 0, 1, 5, 6, 10 and 50.
How energy-efficient is the HPE 861750-B21 drive?
With 7,200 RPM and optimized internal caching, it balances performance with low power consumption.
How do I install the HPE 3.5in 6 TB Midline HDD in my server?
Slide the drive into a compatible 3.5″ bay, secure the carrier latch, and verify recognition via your server’s iLO or RAID utility.