United States$5,000,000+
Inventory Delivered By
P
Phil Cooper
5
Blank kit fits neatly and maintains airflow.
666986-B21
LFF HDD BLANK KIT PL=SI
FEATURED DEAL
Name:
666986-B21
- Description:
- LFF HDD BLANK KIT PL=SI
- 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
666986-B21 Overview
666986-B21 is a high-performance HDD engineered for enterprise-level applications. It features a 3.5-inch form factor with a SATA III interface and a spindle speed of 7200 RPM, delivering a robust storage capacity of 4 TB and an ample 128 MB cache. The drive meets rigorous workload ratings of up to 300 TB/yr and is designed to operate reliably with MTBF values suitable for continuous, high-demand use.
666986-B21 is optimized for energy efficiency, consuming approximately 7 Watts during read/write operations and 4 Watts when idle. Enhanced by advanced features such as a helium-sealed design, vibration protection, and dual actuators, this drive is ideal for data centers, desktop systems, NAS environments, and surveillance applications.
666986-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 666986-B21 for additional pricing. Browse the full category range or explore all Hpe products.
666986-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)
- 7 Watts
- Power Consumption (Idle)
- 4 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
- 666986-B21 High Performance Enterprise HDD
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 4.00 inches
- Weight
- 2.2 lbs
666986-B21 Use Case
Scalable Storage Expansion in Enterprise Data Centers
In a large-scale data center migrating to higher-capacity drives, IT teams deploy the 666986-B21-LFF HDD BLANK KIT PL=SI to provision empty 3.5″ drive bays across multiple rack servers. This standardized blanking solution ensures proper airflow, helps maintain N+1 redundancy and accelerates future capacity upgrades. Outcome: Reduced hardware provisioning time by 30%, improved thermal management, and streamlined capacity planning.
Automated Storage Array Validation for QA Labs
A storage vendor’s QA lab integrates the 666986-B21-LFF HDD BLANK KIT PL=SI into its CI/CD pipeline to simulate unpopulated drive slots during automated firmware and interoperability testing. The blank kit delivers consistent slot coverage, enabling rapid swap-ins of diverse HDD models without chassis redesign. Outcome: 40% faster test cycles, higher test coverage, and predictable chassis behavior under mixed-configuration load.
OEM Server Build Standardization for On-Demand Provisioning
An original equipment manufacturer uses 666986-B21-LFF HDD BLANK KIT PL=SI to pre-populate server chassis at its assembly line, allowing configurable drive populations per customer order. By installing blanks in unused LFF bays, the OEM maintains chassis integrity and cooling specifications until final drive selection. Outcome: 25% reduction in build-to-order lead times, minimized inventory SKUs, and guaranteed thermal compliance for every build.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 666986-B21 |  666987-B21 |  N9X95A |  778157-B21 |  726547-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 | 4 TB | 8 TB | 4 TB | 10 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 | 4.2 ms | N/A | N/A |
| Data Transfer Rate | Up to 210 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 | 300 TB/yr | 180 TB/yr | 550 TB/yr | 180 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 7 Watts | 7 Watts | 7.5 Watts | 8 Watts | 9 Watts |
| Power Consumption (Idle) | 4 Watts | 5 Watts | 4 Watts | 5 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 | 5–55°C |
| Product Name | 666986-B21 High Performance Enterprise HDD | 666987-B21 | N9X95A Enterprise Helium-Sealed 8TB 7200 RPM SATA III HDD | 778157-B21 | 726547-B21 Enterprise HDD |
| Height | 1.03 inches | 1.03 inches | 1.0 inches | 1.04 inches | 1.03 inches |
| Width | 5.79 inches | 5.8 inches | 4.0 inches | 5.79 inches | 5.79 inches |
| Depth | 4.00 inches | 4.0 inches | 5.8 inches | 5.00 inches | 8.26 inches |
| Weight | 2.2 lbs | 1.6 lbs | 2.1 lbs | 1.2 lbs | 1.85 lbs |
Reviews & Ratings
A
Anton Gruber
4
OEM blank matched chassis perfectly.
S
Shoaib Malik
5
Simple and effective solution.
B
Ben Fletcher
3
Good quality filler panel.
T
Timo Laaksonen
4
Clean finish inside the rack.
Questions & Answers
What is an LFF HDD Blank Kit (SKU: 666986-B21)?
The LFF HDD Blank Kit (SKU: 666986-B21) is a factory-configured tray assembly including a faceplate and mounting hardware designed to fill empty 3.5-inch drive bays in compatible servers.
Which servers are compatible with the LFF HDD Blank Kit 666986-B21?
The 666986-B21 kit is compatible with supported HPE ProLiant and HPE Apollo series servers that accept large form factor (3.5-inch) drive trays, as specified in their QuickSpecs.
What components are included in the LFF HDD Blank Kit 666986-B21?
The kit includes one 3.5-inch metal drive tray, one blank faceplate, four captive screws, and any required alignment brackets for proper installation.
How do I install the LFF HDD Blank Kit 666986-B21?
To install, power down the server (unless hot-swap bay is supported), remove the existing filler, align the blank kit tray into the drive bay, push until it clicks, and secure with the captive screws.