Western Digital Ultra-low Latency NVMe Storage Solutions

Certain applications require extremely low latency response across the network—from host to storage—to achieve top performance. All NVMe storage solutions provide new opportunities to lower overall latency. However, limitations in the JBOF controllers that are used to aggregate storage into external NVMe arrays may degrade the native latency characteristics of NVMe SSDs.


Using low latency JBOF controllers in conjunction with NVMe provides an opportunity to achieve very low latency storage that supports latency-sensitive applications such as AI & MI, cloud-based DevOps, OLTP, finance & e-commerce and real-time analytics. ATTO XstreamCORE® 9400, in conjunction with Western Digital Ultrastar® NVMe drives, offers one such unique storage solution.


  • Low-latency storage is achieved by using low-latency JBOF controllers in conjunction with NVMe
  • ATTO XstreamCORE 9400 JBOF controllers are paired with Ultrastar DC SN640 NVMe SSDs
  • The ATTO XstreamCORE 9400 adds a very low amount of latency to I/O operations, typically less than 2% even under load, allowing the storage to achieve its maximum performance
  • Ultrastar DC SN640 provides high IOPS with consistently low latency



  • Artificial Intelligence (AI) & Machine Learning (ML)
  • Cloud-based DevOps
  • Online Transactional Processing (OLTP) for High-Frequency Trading
  • Finance and E-commerce
  • Real-Time Analytics

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