Dell 400-APXJ 900GB 15K RPM SAS 12Gb/s 512e 256MB cache hot-swappable 2.5-inch hard drive with tray delivers ultra-fast enterprise storage performance and reliability for Dell PowerEdge servers.

400-APXJ – Dell 900GB 15,000 RPM SAS 12Gb/s 512e 256MB Cache Hot-Swappable 2.5-Inch Hard Drive with Tray

The Dell 400-APXJ 900GB Hard Drive with Tray is a high-performance enterprise storage solution engineered for Dell PowerEdge servers and mission-critical data center environments. Featuring a SAS 12Gb/s interface, ultra-fast 15,000 RPM spindle speed, 512e (512-byte emulation) sector format, 256MB cache, hot-swappable functionality, and an included Dell drive tray, this drive delivers exceptional speed, low latency, and enterprise-grade reliability for demanding workloads.

Built in a compact 2.5-inch Small Form Factor (SFF), the drive provides 900GB of storage capacity while maximizing I/O throughput and application responsiveness. The 15K RPM rotational speed significantly reduces seek times and enhances performance for enterprise databases, virtualization environments, ERP systems, analytics platforms, and transaction-intensive applications.

The integrated 256MB cache improves data access efficiency and accelerates frequently accessed operations, while the 512e sector format provides compatibility with legacy operating systems and applications while benefiting from modern storage architecture enhancements. The included Dell tray allows quick deployment in compatible server bays, and the hot-swappable design enables drive replacement without shutting down the system.

Designed for continuous 24/7 operation, the Dell 400-APXJ combines enterprise durability, advanced caching technology, and high-speed SAS connectivity to support critical business operations.

Model Type

Internal Enterprise Hard Drive — 2.5″ SAS (12Gb/s, 15K RPM, 512e, 256MB Cache, Hot-Swappable, With Tray)

Category

Storage — Enterprise Ultra-Performance Hard Disk Drive (HDD)

Key Features
900GB Storage Capacity — High-speed enterprise storage
15,000 RPM Spindle Speed — Ultra-fast data access and low latency
SAS 12Gb/s Interface — High-speed enterprise connectivity
256MB Cache — Enhanced performance and faster data retrieval
512e Sector Format — Legacy compatibility with modern storage architecture
Hot-Swappable Design — Enables maintenance without server downtime
Includes Dell Drive Tray — Ready for installation in compatible Dell systems
Enterprise-Class Reliability — Designed for continuous 24/7 operation
Technical Specifications
Specification Details
Model 400-APXJ
Capacity 900GB
Drive Type Hard Disk Drive (HDD)
Interface SAS 12Gb/s
Rotational Speed 15,000 RPM
Cache 256MB
Sector Format 512e (512-byte Emulation)
Form Factor 2.5″ SFF
Feature Hot-Swappable
Included Accessory Dell Drive Tray
Compatibility Dell PowerEdge Servers & Storage Systems
Usage Class Enterprise Ultra-Performance Storage
Lead Time 4–6 Business Days
Typical Use Cases
Enterprise database servers
High-frequency transaction processing
ERP and financial applications
Virtualization platforms
Analytics and business intelligence workloads
Mission-critical data center environments
Performance-intensive enterprise applications