United States$5,000,000+
Inventory Delivered By
D
David Turner
5
Reliable SATA HDD for general purpose workloads.
861676-B21
HP 2TB 7.2K 3.5 6G SATA SC MDL HDD
FEATURED DEAL
Name:
861676-B21
- Description:
- HP 2TB 7.2K 3.5 6G SATA SC MDL HDD
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
- Warranty:
- 3
- List Price:
$464.35
- Price:
$232.1850% off
Quantity:
1
Business price:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
TRUSTED, TRIED, PROVEN
Officially Accredited
& Verified By
Next-Gen IT
Solutions Powered By
861676-B21 Overview
861676-B21 is a high-performance HDD built in a 3.5-inch form factor with a SATA III interface, operating at 7200 RPM. It offers a storage capacity of 4 TB, a 256 MB cache, and is designed for enterprise use with a robust MTBF of 2,000,000 hours and a reliability rating supporting rigorous operating conditions.
Targeted for desktop, server, NAS, surveillance, and enterprise storage applications, this drive features efficient power consumption of 8 Watts during read/write operations and 5 Watts while idle. Advanced features include a helium-sealed design, vibration protection, and dual actuator technology, making it an ideal choice for data centers, workstations, and high-demand storage arrays.
861676-B21 price is $232.18, a 50% saving from the Hpe list price of $464.35. 861676-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 861676-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
861676-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 250 MB/s
- Annual Workload Rating
- 550 TB/yr
- Power Consumption (Read/Write)
- 8 Watts
- Power Consumption (Idle)
- 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
- 861676-B21 Enterprise HDD
- Height
- 1.03 inches
- Width
- 4 inches
- Depth
- 5.78 inches
- Weight
- 1.5 lbs
861676-B21 Use Case
High-Density Data Center Tiered Storage Expansion
In a hyperscale data center running mixed OLTP and archive workloads, deploying the 861676-B21-HP 2TB 7.2K 3.5
SMB Virtualization and Backup Consolidation
An IT manager at a mid-sized professional services firm implements the 861676-B21-HP 2TB 7.2K 3.5
24/7 Surveillance Video Recording and Long-Term Archival
A large campus security department equips its NVR appliances with the 861676-B21-HP 2TB 7.2K 3.5
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 861676-B21 |  P09687-B21 |  804634-B21 |  804616-B21 |  875488-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 | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 4 TB | 8 TB | 8 TB | 8 TB | 4 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 256 MB | 256 MB | 256 MB | 64 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 210 MB/s |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 300 TB/yr | 550 TB/yr | 180 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 8 Watts | 8.0 Watts | 7.2 Watts | 8 Watts |
| Power Consumption (Idle) | 5 Watts | 5 Watts | 4.0 Watts | 5.4 Watts | 5 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 | 5–60°C | 5–60°C |
| Product Name | 861676-B21 Enterprise HDD | P09687-B21 Enterprise 8TB SATA HDD | 804634-B21 Enterprise HDD | 804616-B21 Enterprise HDD | 875488-B21 Enterprise HDD |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 4 inches | 5.8 inches | 4.01 inches | 4.00 inches | 4 inches |
| Depth | 5.78 inches | 4.0 inches | 5.79 inches | 5.79 inches | 5.79 inches |
| Weight | 1.5 lbs | 3.65 lbs | 1.7 lbs | 1.65 lbs | 1.5 lbs |
Reviews & Ratings
R
Rizwan Anwar
4
Stable performance with low noise.
M
Martin Schulz
5
Installed smoothly in existing arrays.
Z
Zain Abbas
5
Works as expected for backups.
O
Olli Virtanen
4
Good everyday drive.
Questions & Answers
What are the key specifications of the HP 2TB 7.2K 3.5" 6G SATA SC MDL HDD (SKU 861676-B21)?
The HP 2TB 7.2K 3.5" 6G SATA SC MDL HDD (SKU 861676-B21) features 2 TB capacity, 7,200 RPM speed, 6 Gb/s SATA interface, 3.5" form factor, and a 128 MB cache for enterprise-grade performance.
Is the HP 861676-B21 compatible with HP ProLiant servers?
Yes, the HP 861676-B21 HDD is fully compatible with HP ProLiant Gen8, Gen9, and Gen10 servers supporting 6G SATA 3.5" drives.
Can I install this HDD in RAID configurations?
Yes, the HP 2TB 7.2K 3.5" 6G SATA SC MDL HDD supports hardware RAID levels 0, 1, 5, 6, 10, and 50 when used with a compatible RAID controller.
What is the average seek time for this HP 2TB 7.2K HDD?
The HP 861676-B21 delivers an average seek time of 8.5 ms, ensuring efficient data access in enterprise environments.
How reliable is the HP 2TB 7.2K 3.5" 6G SATA MDL HDD?
This HDD offers an MTBF of 1.2 million hours and a workload rating of 550 TB/year for high reliability and continuous operation.
What is the power consumption of the HP 861676-B21 drive?
The HP 2TB 7.2K 3.5" 6G SATA HDD consumes 6.8 W idle and 10.4 W active, optimizing power efficiency in storage arrays.
Does the HP 2TB 7.2K HDD support hot-swapping?
Yes, the HP 861676-B21 is hot-swappable, allowing safe drive replacement without powering down compatible servers or enclosures.
What are the environmental operating conditions for this HDD?
The drive operates between 5 °C and 60 °C with 5%–95% non-condensing humidity, ensuring performance under diverse data center conditions.
How do I install the HP 861676-B21 in a server?
Mount the 3.5" drive into an available bay, secure it, attach the 6G SATA data and power cables, then configure it in the server’s BIOS or RAID utility.
What workload is the HP 2TB 7.2K 3.5" 6G SATA HDD designed for?
This HDD is optimized for mainstream enterprise applications such as file servers, backup solutions, and medium-duty databases.
Does the HP 861676-B21 support Native Command Queuing (NCQ)?
Yes, the HP 2TB 7.2K 3.5" 6G SATA SC MDL HDD supports NCQ to optimize command processing and improve throughput.
What warranty is offered on the HP 2TB 7.2K SATA HDD?
HP provides a three-year limited warranty covering defects in materials and workmanship under normal usage for SKU 861676-B21.
Can this HDD be used for virtualization environments?
Yes, the HP 2TB 7.2K 3.5" 6G SATA MDL HDD suits virtualization workloads requiring balanced performance and capacity.
How does the HP 2TB 7.2K 3.5" SATA HDD compare to SSDs?
While SSDs offer lower latency, the HP 2TB 7.2K HDD provides higher capacity at a lower cost per gigabyte, ideal for bulk storage.
What is the shock tolerance of the HP 861676-B21 drive?
The drive withstands 350 Gs of non-operating shock and 65 Gs of operating shock, ensuring durability during handling and operation.
Where can I purchase the HP 2TB 7.2K 3.5" 6G SATA SC MDL HDD?
You can buy the HP 861676-B21 from HP authorized resellers, online marketplaces, or HP’s official storefront for genuine parts.