Worldwide$5,000,000+
Inventory Delivered By
S
Samuel Young
5
Reliable SAS drive for Gen8 and Gen9 servers. Easy to deploy.
781518-B21
Original Stock
Ready to Ship
HPE 1.2TB SAS 12G Enterprise 10K SFF (2.5in) SC 3yr Warranty...
FEATURED DEAL
Name:
781518-B21
- Description:
- HPE 1.2TB SAS 12G Enterprise 10K SFF (2.5in) SC 3yr Warranty HDD For Use With Gen8/Gen9 or Newer
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
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
781518-B21 Overview
781518-B21 is a high-performance HDD designed for demanding enterprise storage applications. Built in a 3.5-inch form factor with a SATA III interface and a spindle speed of 7200 RPM, this drive boasts an 8 TB capacity and a 256 MB cache. It is engineered with advanced features such as a helium-sealed design, dual actuator technology, and robust vibration protection to ensure optimal performance and durability. The drive also offers a rated MTBF of 2,500,000 hours and is designed for 24/7 operation, making it ideal for data centers and server environments.
The 781518-B21 is optimized for intensive workloads with an impressive annual workload rating of 550 TB/yr, while maintaining efficient power consumption figures of 8 Watts during read/write operations and 5 Watts in idle mode. Its reliable design and enterprise-class components make it suitable for critical applications in data centers, desktops, NAS, and surveillance systems, ensuring dependable performance under continuous use.
781518-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 781518-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
781518-B21 Specifications
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Enterprise Storage
- Interface
- SATA III
- Form Factor
- 3.5-inch
- Storage Capacity
- 8 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
- 781518-B21 Enterprise HDD
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 4.00 inches
- Weight
- 2.1 lbs
781518-B21 Use Case
High-Transaction OLTP Database Acceleration with 781518-B21-HPE 1.2TB SAS 12G Enterprise 10K SFF
In a financial services environment running Microsoft SQL Server on HPE ProLiant Gen9, deploying multiple 781518-B21-HPE 1.2TB SAS 12G Enterprise 10K SFF drives in a RAID 10 array delivers sub-1 ms read/write latencies under heavy OLTP workloads. The result is 30% faster transaction processing, consistent 99.99% system availability, and reduced risk of I/O bottlenecks during peak trading hours.
Virtualized Mixed-Workload Optimization on Gen8/Gen9 with 781518-B21-HPE HDD
An enterprise IT department consolidates 50+ Windows and Linux VMs on an HPE ProLiant Gen8 cluster. Integrating 781518-B21-HPE 1.2TB SAS 12G 10K SFF drives into each server enhances sustained IOPS performance by 25%, cuts VM boot storms by half, and ensures predictable latency for business-critical applications—all backed by a 3-year HPE warranty for uninterrupted operations.
Secure On-Premises Backup and Archive Storage with 781518-B21-HPE 1.2TB SAS
A healthcare provider implements a tiered backup solution on HPE Gen9 servers using 781518-B21-HPE 1.2TB SAS 12G Enterprise drives in RAID 6. This configuration stores patient records with 99.999% data integrity and 6-hour restore SLAs. The combination of high-density 2.5″ form factor and enterprise-grade reliability meets strict HIPAA compliance and reduces total cost of ownership by 20% over tape-based systems.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 781518-B21 |  P06200-B21 |  Q2T63A |  Q6M07A |  P09096-B21 | |
|---|---|---|---|---|---|
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Use Case | 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 / SAS 12Gb/s |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 8 TB | 4 TB | 10 TB | 10 TB | 8 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 128 MB | 256 MB | 256 MB | 256 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Data Transfer Rate | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 8 Watts | 8.5 Watts | 8 Watts | 12 W |
| Power Consumption (Idle) | 5 Watts | 5 Watts | 6.0 Watts | 6 Watts | 7 W |
| 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 | 5–60°C |
| Product Name | 781518-B21 Enterprise HDD | P06200-B21 Enterprise HDD | Q2T63A 10TB Enterprise HDD | Q6M07A Enterprise HDD | P09096-B21 Enterprise Performance HDD |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 4 inches | 5.79 inches | 5.79 inches | 4.01 inches |
| Depth | 4.00 inches | 5.8 inches | 4.00 inches | 4.00 inches | 5.78 inches |
| Weight | 2.1 lbs | 1.5 lbs | 2.2 lbs | 3.5 lbs | 1.65 lbs |
Reviews & Ratings
R
Rizwan Haider
5
Consistent performance and smooth RAID configuration.
P
Paola Conti
5
Stable under continuous workloads. No compatibility issues.
I
Imtiaz Ahmad
5
Good enterprise drive with predictable behavior.
G
George Phillips
5
Works as expected. Solid performance for business use.
Questions & Answers
What are the main specifications of the HPE 1.2TB SAS 12G Enterprise 10K SFF HDD (SKU: 781518-B21)?
The HPE 781518-B21 features 1.2 TB capacity, 10 000 RPM speed, 12 Gb/s SAS interface, 2.5-inch SFF form factor with Smart Carrier (SC), and includes a 3-year limited hardware warranty.
Is this HDD compatible with HPE ProLiant Gen8, Gen9, or newer servers?
Yes. The 1.2 TB SAS 12G Enterprise 10K SFF HDD (781518-B21) is fully validated for HPE ProLiant Gen8, Gen9 and all subsequent server generations supporting 2.5-inch SAS drives.
What does the 'SC' designation mean on this HPE HDD?
'SC' stands for Smart Carrier, HPE’s tool-less drive tray design that simplifies hot-swap installation and chassis handling in ProLiant servers.
What performance benefits does the 12 Gb/s SAS interface provide?
The 12 Gb/s SAS interface doubles throughput over 6 Gb/s SAS, delivering sustained high-bandwidth transfers, lower latency, and improved I/O performance for enterprise workloads.