LENOVO ThinkSystem 3.5′ 4TB 7.2K SATA 6Gb Hot Swap 512n HDD for SR250/SR530/SR550/SR570/SR590/SR630/SR650/SR635/SR655/SR645/SR665/ST250/ST550

‘Lenovo HDDs provide outstanding performance, high capacity and reliability.

• Outstanding performance for all mission critical applications
  
• Enterprise HDDs with enhanced sequential and random read/write performance, designed for critical business applications
  
• Offering highest capacity HDDs from industry leaders
  
• Lenovo offers a wide range of HDDs from storage industry leaders to ensure the best technology and highest capacity points are available to our customers
  
• Excellent reliability and performance in 24×7 operational environments
  
• Lenovo uses comprehensive validation and quality control measures to ensure best reliability and performance for all application workloads under 24×7 operation
  
• Protect data with Self-Encrypting drives
  
• Lenovo offers Self-encrypting drives to protect customer data against loss or theft as well as secure drive retirement, disposal, or repurposing
  
• Helium-filled drive assemblies for drives 12TB and larger (Helium provides a more stable environment and less turbulence and resistance to the flying heads. This enables a larger number of platters which results in larger storage capacity. The use of Helium also results in lower power consumption compared to air-filled drives.)
  

Workload limit: All 7200 RPM NL SAS and NL SATA drives have a workload limit of 550TB/year. 10K and 15K SAS drives do not have a workload limit.

Reference Information‘