400-ATJO

400-ATJO – Dell 1.2TB 10,000 RPM SAS 12Gb/s 512n Hot-Pluggable 2.5-Inch Hard Drive

The Dell 400-ATJO 1.2TB SAS Hard Drive is a high-performance enterprise storage solution engineered for Dell PowerEdge servers and mission-critical data center environments. Featuring a 10,000 RPM spindle speed, SAS 12Gb/s interface, 512n (512-byte native) sector format, and hot-pluggable capability, this drive delivers exceptional performance, low latency, and enterprise-grade reliability for demanding business applications.

With a storage capacity of 1.2TB, the drive provides an ideal balance of capacity and speed, making it suitable for virtualization platforms, enterprise databases, ERP systems, cloud infrastructure, financial applications, and high-performance RAID storage arrays. The 10K RPM spindle speed ensures rapid data access and improved application responsiveness, while the SAS 12Gb/s interface offers high-bandwidth connectivity and dependable enterprise-class operation.

The 512n sector format ensures broad compatibility with modern operating systems, RAID controllers, and enterprise storage environments. Its compact 2.5-inch Small Form Factor (SFF) design supports high-density server deployments, while the hot-pluggable design allows administrators to replace or upgrade drives without shutting down the server, maximizing uptime and operational efficiency.

Model Type

Internal Enterprise HDD — 2.5″ SAS (12Gb/s, 10K RPM, 512n, Hot-Pluggable)

Category

Storage — Enterprise SAS Hard Disk Drive (HDD)

Key Features
1.2TB Capacity — High-capacity enterprise storage for critical workloads
10,000 RPM Spindle Speed — Fast data access and low-latency performance
SAS 12Gb/s Interface — High-speed enterprise connectivity
512n Sector Format — Broad compatibility with enterprise systems
Hot-Pluggable Design — Enables maintenance and upgrades without downtime
2.5-Inch SFF Form Factor — Optimized for high-density server deployments
Enterprise-Class Reliability — Built for continuous 24/7 operation
High IOPS Performance — Ideal for virtualization and database applications
RAID Optimized — Suitable for enterprise storage and redundancy configurations
Technical Specifications
Specification Details
Model 400-ATJO
Capacity 1.2TB
Drive Type Internal HDD
Interface SAS 12Gb/s
Sector Format 512n (512-byte Native)
Spindle Speed 10,000 RPM
Form Factor 2.5″ SFF
Hot-Pluggable Yes
Data Transfer Rate Up to 1.2 GB/s
Workload Type Enterprise / Performance Storage
Compatibility Dell PowerEdge Servers & Storage Arrays
Lead Time 4–6 Business Days
Typical Use Cases
Virtualization platforms
Enterprise database systems
ERP and CRM applications
Cloud and private cloud infrastructure
Financial and banking applications
RAID storage arrays
Data center deployments
Mission-critical enterprise workloads