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881781-B21
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12TB SAS 7200 RPM LFF LP HE 512E DS HDD PL-SI
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Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
881781-B21
- Description:
- 12TB SAS 7200 RPM LFF LP HE 512E DS HDD PL-SI
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 3
- List Price:
$2,230.00
- Price:
$511.0077.1% off
Quantity:
1
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881781-B21 Overview
881781-B21 is a high-performance HDD engineered for rigorous enterprise environments. It features a 3.5-inch form factor with a SATA III interface, a 7200 RPM spindle speed, and a generous 4 TB storage capacity—all designed to meet the demands of data centers, desktops, NAS, and surveillance systems.
881781-B21 comes equipped with a substantial 128 MB cache and an annual workload rating of 300 TB/yr, along with an industry-standard MTBF of 2,000,000 hours, which reflects its reliability rated for continuous operation. With low power consumption of 8 Watts during read/write operations and 5 Watts at idle, plus advanced features such as a helium-sealed design, vibration protection, and dual actuator technology, this drive is optimized for both performance and long-term dependability in diverse storage applications.
881781-B21 price is $511.00, a 77.1% saving from the Hpe list price of $2,230.00. 881781-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 881781-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
881781-B21 Specifications
- Product Type
- Hard Drive
- Brand
- Hpe
- 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)
- 128 MB
- Data Transfer Rate
- Up to 210 MB/s
- Annual Workload Rating
- 300 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
- Enterprise Capacity HDD 4TB 7200RPM 881781-B21
- Height
- 1.03 inches
- Width
- 5.8 inches
- Depth
- 4 inches
- Weight
- 2.1 lbs
881781-B21 Use Case
Enterprise Data Archival and Backup Optimization with 881781-B21-12TB SAS HDD
In a large financial services backup environment, deploying 881781-B21-12TB SAS 7200 RPM LFF LP HE 512E DS HDDs in RAID-6 arrays enables consolidation of petabytes of regulatory and audit data. The high-density, low-power design reduces rack space by 25%, cuts energy consumption by 30%, and accelerates restore SLAs—ensuring compliance and lowering total cost of ownership.
Virtualization and VDI Storage Scaling with 881781-B21-12TB SAS Drive
In a global enterprise VDI deployment supporting over 1,000 concurrent sessions, using 881781-B21-12TB SAS 7200 RPM LFF LP HE 512E DS HDDs for virtual machine datastores delivers consistent I/O performance and high capacity per node. The drive’s enterprise endurance and dense form factor increase VM density by 20%, reduce per-desktop storage costs by 15%, and simplify infrastructure management.
Scale-Out Object Storage for Big Data Analytics using 881781-B21-12TB SAS HDD
In a petabyte-scale analytics cluster, integrating 881781-B21-12TB SAS 7200 RPM LFF LP HE 512E DS HDDs into scale-out object storage nodes boosts sustained throughput for MapReduce and Spark jobs. The enterprise-grade reliability and advanced sector efficiency improve data ingest rates by 35%, lower hardware refresh cycles, and reduce operational expenditures by 22%.
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Product Comparison Table 
| 881781-B21 |  857644-B21 |  765259-B21 |  H6G53A |  846528-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 | 4 TB | 4 TB | 12 TB | 8 TB | 4 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 128 MB | 256 MB | 256 MB | 128 MB | 256 MB |
| Data Transfer Rate | Up to 210 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 300 TB/yr | 550 TB/yr | 550 TB/yr | 300 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 8 W | 8.5 Watts | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 5 Watts | 5 W | 5.0 Watts | 4 Watts | 4 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 | 5–55°C | 5–60°C | 5–55°C |
| Product Name | Enterprise Capacity HDD 4TB 7200RPM 881781-B21 | 857644-B21 | 765259-B21 12TB Enterprise Helium-Sealed HDD | H6G53A Enterprise Helium-Sealed HDD | 846528-B21 |
| Height | 1.03 inches | 1.03 inches | 1.00 inches | 1.03 inches | 1.0 inches |
| Width | 5.8 inches | 4.00 inches | 5.79 inches | 4.0 inches | 5.8 inches |
| Depth | 4 inches | 5.78 inches | 4.00 inches | 5.79 inches | 5.8 inches |
| Weight | 2.1 lbs | 1.20 lbs | 1.80 lbs | 1.6 lbs | 2.2 lbs |
Compliance & Coverage
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
C
Chris Wallace
4
High capacity SAS drive handled large datasets efficiently.
S
Shahbaz Ali
5
Reliable performance under sustained workloads.
M
Marco DeLuca
5
OEM firmware ensured smooth integration.
A
Adeel Rauf
4
Good choice for enterprise storage pools.
H
Henrik Olsen
5
Consistent and dependable.
Questions & Answers
What are the key features of the HPE 12TB SAS 7200 RPM LFF LP HE 512E DS HDD PL-SI (SKU: 881781-B21)?
The HPE 881781-B21 delivers 12 TB capacity, 7200 RPM rotational speed, a 12 Gb/s dual-port SAS interface, 512e sector format, low-power/high-efficiency design, and a 3.5″ low-profile form factor for enterprise storage.
Is the HPE 881781-B21 compatible with HPE ProLiant servers?
Yes. This drive is validated for HPE ProLiant Gen8, Gen9, Gen10, and Gen11 servers that support 3.5″ SAS HDDs, ensuring seamless integration and firmware compatibility.
What does LP HE stand for in this HPE SAS HDD model?
LP HE denotes Low-Power, High-Efficiency design, which reduces power consumption and heat output to optimize operating costs in dense data-center environments.
What is the average rotational latency of the 7200 RPM drive?
At 7200 RPM, the drive achieves an average rotational latency of 4.16 ms, balancing capacity with moderate random and sequential performance.
What is the power consumption of the HPE 12TB SAS HDD?
The drive draws approximately 6.8 W at idle and up to 8.5 W during peak read/write operations, supporting energy-efficient enterprise deployments.
Which interface and throughput does this HDD support?
It uses a 12 Gb/s dual-port SAS interface capable of delivering up to 1.2 GB/s sequential throughput per port under optimal conditions.
Can I use this HDD in RAID configurations?
Yes. When paired with a compatible SAS RAID controller, the drive supports RAID levels 0, 1, 5, 6, 10, and 50 for data protection and performance.
Is the HPE 881781-B21 hot-swappable?
Yes. The drive is hot-swap capable in servers equipped with hot-plug backplanes, enabling zero-downtime replacement and maintenance.
What warranty does the HPE 12TB SAS HDD include?
The drive ships with a one-year HPE limited warranty, which can be extended up to five years with HPE Care Pack services for comprehensive coverage.
What are the operating and non-operating temperature ranges?
Operating temperatures range from 5 °C to 55 °C, while non-operating storage temperatures span –40 °C to 70 °C, matching standard data-center conditions.
What is the rated MTBF for this enterprise HDD?
The HPE 12 TB SAS drive is rated at 2 million hours MTBF (Mean Time Between Failures) under typical enterprise workloads for high reliability.
Does the HPE 881781-B21 support hardware-based encryption?
No. This model does not include self-encrypting drive (SED) functionality; HPE SED models are available separately for data-at-rest encryption.
How does this 7200 RPM SAS HDD compare to a 10 K RPM drive?
Compared to 10 K RPM drives, it offers higher capacity and lower power consumption at slightly higher latency, making it ideal for nearline and archive storage.
Which workloads are best suited for the HPE 12 TB SAS 7200 RPM HDD?
This drive excels in backup, archive, nearline storage, object storage, and cold-tier applications requiring high capacity and energy efficiency.
How do I install the HPE 881781-B21 in my server?
Insert the drive into an available 3.5″ SAS hot-plug bay until it latches; the server BIOS will automatically detect the new HDD without requiring a reboot.
What is the form factor and physical size of this HDD?
The drive is a 3.5-inch LFF low-profile HDD measuring 146 × 101.6 × 25.4 mm (L×W×H) and weighing approximately 720 g.