The 12.0 Gbit/s SAS interface AL14SX Series Enterprise Performance HDDs are Toshiba''s highest-performing 15,000rpm model line. Engineered for mission critical IT operations, an array of models are available with 512 native (512n), or emulated 512 (512e) or 4K native sector length technologies for optimum application and operating system compatibility. Toshiba''s Persistent Write Cache technology protects against data loss in the event of unexpected power loss, and helps maintain optimum data reliability for high-duty cycle Mission Critical environments. Key Features: 900, 600 and 300GB Capacity Models Space Efficient, Power Saving 2.5-inch Form Factor 12.0 Gbit/s SAS Interface for Better Performance 15,000 rpm Performance Industry Leading Low Latency (2.0ms) 24/7 Mission Critical Workload Performance and Data Reliability 512n sector length support in all capacities for optimum legacy application compatibility Toshiba Persistent Write Cache Technology Sanitize Instant Erase (SIE) Option Applications: Tier 1 Mission-Critical Servers and RAID Storage Servers hosting transaction-based applications Rack-Optimized Data Centers Tiered Mission-Critical storage and Hybrid Arrays High-performance computing Mission-Critical Server Boot and Logging