400-BLLI Dell 2TB SATA 6GBPS 7.2k RPM Hot plug Hard Drive

Overview of Dell 400-BLLI 2TB SATA 6Gbps Internal Hard Drive

The DELL 400-BLLI 2TB 7200RPM SATA Internal Hard Drive is a reliable enterprise-class storage device designed specifically for Dell PowerEdge server environments. Built with durability, speed, and consistent performance in mind, this 3.5-inch HDD with tray delivers stable data handling for business-critical workloads.

General Information

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

Technical Specifications

• Storage Capacity: 2TB
• Form Factor: 3.5-inch enterprise HDD
• Sector Format: 512n native sector technology
• Interface: SATA 6Gb/s high-speed 
• Cache Buffer: 256MB 
• Spindle Speed: 7200 RPM

Supported Dell PowerEdge Systems

Rack and Tower Servers

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

Tower Series Compatibility

• PowerEdge T350
• PowerEdge T550

The Dell 400-BLLI 2TB SATA 6GBPS 7.2k RPM Hard Drive

The Dell 400-BLLI 2TB 7200RPM SATA 6Gbps 512n 3.5-inch internal hard drive is positioned within the enterprise-grade storage hardware category designed specifically for Dell PowerEdge server environments, particularly optimized for 15G server architectures. This storage device represents a balanced combination of capacity, rotational speed, interface stability, and enterprise compatibility, making it suitable for organizations requiring dependable nearline storage performance. In modern data center ecosystems, this category of hard drives plays a crucial role in handling structured data workloads, archival storage, virtualization environments, and general-purpose server tasks where consistent throughput is more critical than ultra-low latency.

7200RPM Spindle Speed

The 7200RPM rotational speed is a defining characteristic of this category of enterprise hard drives. This speed is strategically selected to offer a middle ground between high-performance enterprise SAS drives and cost-effective nearline SATA solutions. In data center environments, this RPM level supports predictable seek times and balanced throughput, especially for sequential read-heavy workloads such as backup storage, log processing, and data archiving systems. The rotational consistency helps maintain operational stability across long-duration workloads without excessive thermal or mechanical stress.

SATA 6Gbps Interface

The SATA 6Gbps interface integrated into the Dell 400-BLLI ensures broad compatibility with enterprise storage controllers while maintaining sufficient bandwidth for large-scale data transfers. Although SATA is considered less advanced than SAS in terms of dual-port redundancy and command queue depth, it remains a widely accepted standard for bulk storage applications. The 6Gbps bandwidth supports sustained data transfer rates suitable for most enterprise archival and secondary storage workloads, ensuring efficient utilization in hybrid storage infrastructures.

512n Sector Format

The 512n native sector format is a traditional yet highly compatible data structuring standard used in enterprise storage systems. It ensures seamless integration with legacy applications and modern operating systems without requiring translation layers that can introduce latency overhead. This format is particularly valuable in environments where consistent compatibility and predictable performance are more important than advanced sector aggregation technologies.

3.5-inch Form Factor

The 3.5-inch form factor of the Dell 400-BLLI aligns with standard enterprise server drive bays, allowing seamless integration into Dell PowerEdge 15G systems. This form factor is widely adopted due to its ability to support higher storage densities and improved thermal dissipation compared to smaller drive sizes. The inclusion of a compatible tray simplifies installation and ensures proper mechanical alignment within hot-swap drive bays.

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.

Compatibility with Dell PowerEdge

This storage device is specifically optimized for Dell PowerEdge 15G server architectures, ensuring full compatibility with backplane configurations and RAID controller systems. The integration with Dell’s enterprise server ecosystem ensures that firmware synchronization, drive recognition, and performance tuning are aligned with system-level optimizations. This compatibility reduces configuration complexity and enhances deployment efficiency in large-scale server environments.

Hybrid Storage Architecture Integration

In modern data centers, hybrid storage architectures combining SSDs and HDDs are commonly used to balance performance and cost. The Dell 400-BLLI fits into the HDD tier of such architectures, providing cost-effective bulk storage while SSDs handle high-performance caching and transactional workloads. This layered approach optimizes both speed and storage economics.

Data Archiving and Backup Systems

In backup and archiving environments, the emphasis is on storage capacity and long-term data retention rather than high-speed processing. The Dell 400-BLLI provides an efficient solution for storing large volumes of historical data, ensuring that backup cycles can be completed reliably without performance bottlenecks.