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High capacity SAS drive handled large datasets efficiently.
881781-B21
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12TB SAS 7200 RPM LFF LP HE 512E DS HDD PL-SI
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Name:
881781-B21
- Description:
- 12TB SAS 7200 RPM LFF LP HE 512E DS HDD PL-SI
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Added to cart 28 times recently
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- Brand:
- Hpe
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- Warranty:
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- List Price:
$2,230.00
- Price:
$511.0077.1% off
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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
- 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
- Average Latency
- N/A
- 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%.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
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 |
| 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 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 |
Reviews & Ratings
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.