400-BLLI Dell 2TB SATA 6GBPS 7.2K RPM Hot plug HDD.

Overview of Dell 400-BLLI 2TB SATA 6GBPS 7.2K RPM HDD

The DELL 400-BLLI 2TB 7200RPM SATA Internal Hard Drive is a robust, enterprise-grade storage device engineered for demanding server environments. Designed with a 3.5-inch form factor and bundled with a hot-swap tray, this drive delivers dependable performance, scalability, and compatibility with multiple Dell PowerEdge server models.

General Information

• Brand: Dell
• Part Number: 400-BLLI
• Product Type: Hard Drive

Technical Specifications

• Storage Capacity: 2TB (Terabytes)
• Form Factor: 3.5-inch
• Interface Type: SATA 6Gb/s
• Sector Format: 512n native sector size
• Cache Buffer: 256MB high-speed cache memory
• Spindle Speed: 7200 RPM
• Max Sustained Transfer Rate: 215 Mbps

Server Compatibility

Supported Dell PowerEdge Systems

• PowerEdge R350
• PowerEdge R450
• PowerEdge R550
• PowerEdge R650
• PowerEdge R650xs
• PowerEdge R750
• PowerEdge R750xs
• PowerEdge T350
• PowerEdge T550

The Dell 400-BLLI 2TB 7.2K RPM SATA 6Gbps Hard Drive 

The Dell 400-BLLI 2TB 7.2K RPM SATA 6Gbps 512n 3.5-inch Hot-Plug Hard Drive is engineered for enterprise-grade storage environments where reliability, consistent performance, and scalability are essential. Designed specifically for Dell PowerEdge servers and compatible storage systems, this hard drive delivers a balanced combination of capacity and rotational speed that makes it suitable for a wide range of data-intensive workloads. With a 7200 RPM spindle speed and SATA 6Gbps interface, it ensures dependable throughput for applications that require stable and predictable data access rather than extreme flash-level performance.

2TB Capacity

With a storage capacity of 2TB, the Dell 400-BLLI is positioned as a mid-tier enterprise storage solution. It is suitable for organizations that require substantial storage without transitioning to higher-cost high-capacity drives. This capacity range is ideal for applications such as file sharing systems, virtual machine storage pools, backup repositories, and database logging systems. The 2TB capacity also makes it a strong candidate for RAID-based architectures where multiple drives are combined to achieve higher aggregate capacity and redundancy.

512n Native Sector Format

The 512n native sector format used in the Dell 400-BLLI hard drive ensures maximum compatibility with legacy applications and older operating systems while maintaining traditional data structuring standards. This format is particularly important in mixed infrastructure environments where older and newer systems coexist. By maintaining 512-byte native sectors, the drive minimizes compatibility issues that can arise when migrating data across different storage generations.

SATA 6Gbps Interface

The SATA 6Gbps interface embedded in the Dell 400-BLLI ensures stable and efficient data communication between the drive and host server. While not designed for ultra-high-performance NVMe workloads, SATA remains one of the most widely adopted storage interfaces due to its stability, compatibility, and cost-effectiveness. This interface allows the drive to achieve optimal throughput for sequential read and write operations commonly found in backup systems, file servers, and cold or warm storage tiers. The consistent 6Gbps bandwidth ensures that data bottlenecks are minimized in environments where multiple drives operate simultaneously in RAID configurations.

7.2K RPM Spindle Speed

The 7200 RPM rotational speed represents a carefully balanced performance profile that prioritizes endurance and efficiency over raw speed. This makes the Dell 400-BLLI ideal for workloads where large datasets are accessed periodically rather than continuously at high frequency. The spindle speed allows the drive to maintain a steady flow of data while reducing mechanical stress and thermal output compared to higher-speed enterprise drives. As a result, it contributes to improved long-term reliability and lower power consumption within large storage arrays.

Compatibility with Dell PowerEdge Servers

The Dell 400-BLLI is specifically designed for compatibility with Dell PowerEdge server systems. This ensures seamless integration with hardware controllers, backplanes, and RAID management tools provided by Dell enterprise infrastructure. Such compatibility reduces configuration complexity and ensures optimal performance tuning when deployed within certified Dell environments.

Backup and Archival Systems

For backup and archival workloads, the 2TB capacity and SATA interface provide an optimal balance between cost and reliability. These systems often require large storage pools that can retain data over long periods without frequent access.

Hot-Swap Compatibility

Hot-swap functionality is a critical feature in enterprise storage systems where downtime must be minimized. The Dell 400-BLLI supports hot-swappable operations, allowing administrators to replace or upgrade drives without shutting down the server. This capability enhances system availability and ensures uninterrupted service delivery in environments such as cloud hosting, database management, and virtualization clusters.