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861681-B21
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- 2TB 6G SATA 7200 RPM LFF MDL LP HDD PL-SI NO DEAL REG PRICING
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861681-B21
2TB 6G SATA 7200 RPM LFF MDL LP HDD PL-SI NO DEAL...
$515.00
$219.00
34 in Global Warehouse
$219.00
57% off
TRUSTED, TRIED, PROVEN
861681-B21 Overview
861681-B21 is a high-performance HDD engineered for demanding enterprise environments. This model comes in a 3.5-inch form factor and utilizes a SATA III interface, delivering reliable 7200 RPM operation with a substantial 4 TB storage capacity and a generous 256 MB cache. Its robust design supports rigorous data handling and ensures fast, consistent access to stored information.
Designed to meet the needs of data centers, NAS systems, desktops, and surveillance applications, 861681-B21 boasts an annual workload rating of 550 TB/yr and an industry-standard MTBF that reinforces its reliability. The drive operates efficiently with low power consumption (approximately 8.5 Watts during read/write operations and 5.5 Watts at idle) and incorporates advanced features such as a helium-sealed design, vibration protection, and dual actuator technology to enhance performance in multi-bay storage environments.
What is the price of 861681-B21?
Lowest price of 861681-B21 is $ 219.00. Shop now! Get further exclusive discounts with bulk quotation on 861681-B21
Explore more options from Hard Drives & Ssds or explore other Hpe products.
861681-B21 Specifications
| Product Type | Hard Drive |
| Drive Type | HDD |
| Use Case | 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 250 MB/s |
| Annual Workload Rating | 550 TB/yr |
| Power Consumption (Read/Write) | 8.5 Watts |
| Power Consumption (Idle) | 5.5 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 | 861681-B21 Helium-Sealed Enterprise HDD |
| Height | 1.03 inches |
| Width | 4 inches |
| Depth | 5.79 inches |
| Weight | 2.1 lbs |
861681-B21 Use Case
High-Performance Virtualization Storage with 861681-B21-2TB 6G SATA 7200 RPM HDD
In a small-to-medium enterprise data center, IT architects deploy the 861681-B21-2TB 6G SATA 7200 RPM LFF MDL LP HDD PL-SI NO DEAL REG PRICING in HPE ProLiant servers to host VMware and Hyper-V datastores. This use case delivers consistent 6 Gb/s throughput and 7200 RPM spindle speed, enabling low-latency VM boot and live migration. Benefit: maximized VM density, predictable performance under mixed workloads, and a competitive cost-per-GB ratio for scalable virtualization environments.
Regulatory-Compliant Backup & Archival for Financial Services
A mid-tier financial institution integrates the 861681-B21-2TB 6G SATA 7200 RPM LFF MDL LP HDD into an HPE MSA storage array for nightly backups and long-term archival. Leveraging enterprise-grade reliability and 2 TB capacity per drive, the solution meets SEC and GDPR retention mandates while minimizing rack space. Benefit: streamlined data retention workflows, audit-ready backups with built-in redundancy, and optimized TCO through high-density, low-power drives.
24/7 Video Surveillance Storage for IP Cameras
Security integrators install the 861681-B21-2TB 6G SATA 7200 RPM LFF MDL LP HDD in network video recorders (NVRs) to support 16-channel 1080p video streams. The drive’s sustained write performance and enterprise duty cycle ensure uninterrupted recording and rapid retrieval of footage for forensic analysis. Benefit: reliable continuous recording, high-resolution storage capability, and simplified drive replacement—delivering peace of mind for mission-critical surveillance deployments.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Advanced Features | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| 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 |
| Depth | 4.00 inches | 4 inches | 5.79 inches | 4.00 inches | 4.01 inches |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Height | 1.03 inches | 1 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Interface | SATA III | SATA III | SATA III | SATA III | SATA III |
| Operating Temperature | 5–60°C | 5–55°C | 5–60°C | 5–60°C | 5–60°C |
| Power Consumption (Idle) | 7 Watts | 5 Watts | 5.5 Watts | 6 Watts | 6 Watts |
| Power Consumption (Read/Write) | 9 Watts | 8 Watts | 8.5 Watts | 8 Watts | 8 Watts |
| Product Name | K2P87B | 818365-B21 Enterprise Series HDD | 861681-B21 Helium-Sealed Enterprise HDD | N9Y46A Enterprise Performance HDD | 843270-B21 16TB Enterprise HDD |
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Storage Capacity | 10 TB | 8 TB | 4 TB | 10 TB | 16 TB |
| Use Case | Desktop / Server / NAS / Surveillance | Enterprise Storage | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Weight | 1.8 lbs | 1.2 lbs | 2.1 lbs | 2.10 lbs | 1.6 lbs |
| Width | 5.78 inches | 5.8 inches | 4 inches | 5.79 inches | 5.79 inches |
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Questions & Answers
Q
What is the storage capacity of SKU 861681-B21?
A
The SKU 861681-B21 hard drive offers 2 TB of raw storage capacity.
Q
What interface and transfer rate does this drive use?
A
This drive uses a 6 Gbps SATA interface for data transfers.
Q
What is the rotational speed of the 861681-B21 drive?
A
The drive spins at 7,200 RPM for balanced performance and capacity.
Q
What form factor does the 861681-B21 hard disk come in?
A
It is a Large Form Factor (3.5-inch) hard drive.
Q
Is the 2 TB 6G SATA 7200 RPM drive compatible with HPE ProLiant servers?
A
Yes, it is fully qualified for HPE ProLiant Gen8, Gen9 and Gen10 servers.
Q
Does this drive support hot-swap functionality?
A
Yes, it supports hot-plug operations in compatible HPE server bays.
Q
What is the average seek time and data access performance?
A
Typical average seek time is 8.5 ms for efficient random read/write operations.
Q
What workload is recommended for this 2 TB HDD?
A
It is optimized for nearline storage, backup and general-purpose server workloads.
Q
What is the power consumption of the 861681-B21 drive?
A
Operating power consumption is approximately 6.8 W during read/write activity.
Q
What is the MTBF (Mean Time Between Failures) rating?
A
The drive has an MTBF rating of 1.2 million hours.
Q
What environmental conditions does the drive support?
A
It operates reliably between 5 °C and 50 °C at 8%–90% relative humidity.
Q
Does the drive support Self-Monitoring, Analysis and Reporting Technology (SMART)?
A
Yes, it includes SMART support for predictive failure analysis.
Q
What are the physical dimensions and weight of the drive?
A
Dimensions are 146.99 × 101.6 × 26.1 mm and weight is approximately 0.75 kg.
Q
What shock and vibration tolerances does the drive offer?
A
It withstands up to 290 m/s² shock (non-operating) and 1.04 Grms vibration (operating).
Q
What warranty covers the SKU 861681-B21 hard drive?
A
It is covered by a standard three-year HPE limited warranty.
Q
What does “PL-SI NO DEAL REG PRICING” mean?
A
It indicates standard list pricing without promotional or deal discounts.
Q
How do I install the 861681-B21 2 TB SATA drive?
A
Insert the drive into a compatible hot-swap bay; the server firmware will detect and configure it automatically.
