United States$5,000,000+
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I
Ian Robertson
4
High capacity SATA drive handled archival data well.
857648-B21
HPE 10TB SATA 6G Midline 7.2K LFF (3.5in) SC 1yr Wty Helium...
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Name:
857648-B21
- Description:
- HPE 10TB SATA 6G Midline 7.2K LFF (3.5in) SC 1yr Wty Helium 512e Digitally Signed Firmware HDD
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
- Warranty:
- 3
- List Price:
$1,839.00
- Price:
$496.0073% off
Quantity:
1
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857648-B21 Overview
857648-B21 is a high-performance HDD built in a 3.5-inch form factor and engineered with a SAS 12Gb/s interface. It spins at 7200 RPM and offers a total storage capacity of 4 TB with a substantial 256 MB cache. The drive is rated for an annual workload of 550 TB/yr and is backed by an MTBF of 1,200,000 hours, making it ideal for applications demanding reliability rated for continuous, 24x7 operation.
857648-B21 also incorporates advanced features including a helium-sealed design, robust vibration protection, and dual actuator technology to ensure optimal performance in challenging environments. Its tailored power consumption during both read/write (8.5 Watts) and idle (5.2 Watts) modes further solidify its place in mission-critical deployments such as data centers, desktops, NAS systems, and surveillance networks.
857648-B21 price is $496.00, a 73% saving from the Hpe list price of $1,839.00. 857648-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 857648-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
857648-B21 Specifications
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Desktop / Server / NAS / Surveillance / Enterprise Storage
- Interface
- SAS 12Gb/s
- 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
- 550 TB/yr
- Power Consumption (Read/Write)
- 8.5 Watts
- Power Consumption (Idle)
- 5.2 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
- 857648-B21 Enterprise Series SAS Hard Drive
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 4.01 inches
- Weight
- 3.64 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 857648-B21 |  858596-B21 |  834028-B21 |  846528-B21 |  861756-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 | SAS 12Gb/s | SATA III | 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 | 4 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 | 128 MB | 128 MB | 256 MB | 128 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| 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 210 MB/s |
| Annual Workload Rating | 550 TB/yr | 180 TB/yr | 300 TB/yr | 550 TB/yr | 300 TB/yr |
| Power Consumption (Read/Write) | 8.5 Watts | 8 Watts | 10 Watts | 8 Watts | 8.0 Watts |
| Power Consumption (Idle) | 5.2 Watts | 5 Watts | 8 Watts | 4 Watts | 5.0 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit | No |
| 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 | 857648-B21 Enterprise Series SAS Hard Drive | 858596-B21 | 834028-B21 Enterprise 4TB SATA HDD | 846528-B21 | 861756-B21 |
| Height | 1.03 inches | 1 inches | 1.03 inches | 1.0 inches | 1.0 inches |
| Width | 5.79 inches | 5.8 inches | 4.00 inches | 5.8 inches | 5.8 inches |
| Depth | 4.01 inches | 4 inches | 5.78 inches | 5.8 inches | 6.9 inches |
| Weight | 3.64 lbs | 2.2 lbs | 2.8 lbs | 2.2 lbs | 2.0 lbs |
Reviews & Ratings
A
Asad Khan
5
Quiet operation and stable throughput.
P
Pedro Silva
5
OEM firmware avoided issues.
S
Salman Akhtar
5
Good long term reliability.
K
Klaus Richter
4
Dependable midline HDD.
Questions & Answers
What is the storage capacity of the HPE 857648-B21 HDD?
The HPE 857648-B21 hard drive delivers 10 TB of raw storage capacity for high-density data environments.
Which interface does the HPE 857648-B21 support?
This drive uses a SATA 6 Gb/s interface for broad compatibility and reliable data transfer.
What is the rotational speed of this HDD?
The drive spins at 7,200 RPM to balance performance and energy efficiency.
What form factor does the HPE 857648-B21 use?
It is a Large Form Factor (LFF) 3.5-inch enterprise-class drive.
What does “Midline” signify for this hard drive?
“Midline” indicates a cost-optimized design for general-purpose and sequential workloads.
How does helium sealing benefit this HDD?
Helium filling reduces internal turbulence, lowers power consumption, and enhances long-term reliability.
What is 512e sector format on the HPE 857648-B21?
512e emulates 512-byte sectors on 4 KB physical sectors, improving compatibility and storage efficiency.
What is digitally signed firmware and why is it important?
Digitally signed firmware verifies authenticity at boot, preventing unauthorized modifications and enhancing security.
What warranty does the HPE 857648-B21 include?
HPE provides a one-year limited warranty backed by global support and parts replacement.
What is the typical power consumption of this drive?
Idle power is approximately 5.2 W and active read/write peaks around 9 W, optimizing energy usage.
What performance can I expect in sequential transfers?
The drive delivers up to 239 MB/s sequential read/write throughput under sustained load.
Which HPE servers and storage systems is this HDD compatible with?
It supports HPE ProLiant Gen9/Gen10 servers, MSA arrays, 3PAR StoreServ, and Synergy enclosures.
How do I install the HPE 857648-B21 in my HPE server?
Slide the drive into any empty 3.5” SAS/SATA bay on an HPE caddy and secure it before booting.
What is the reliability rating of this drive?
The HPE 10 TB helium drive is rated for a 2 million-hour MTBF under 24x7 operation.
What workloads are best suited for this HDD?
It excels in archive, backup, cloud-scale and general-purpose file storage scenarios.
How can I verify that the firmware is digitally signed?
Use HPE Smart Storage Administrator or Scripting Toolkit to audit the drive’s firmware signature.