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Ultrastar NVMe Series

  • Performance NVMe SSDs
  • Ideal for common enterprise mixed-use workloads
  • 96-Layer 3D NAND for Ultrastar DC SN840, DC SN640 and DC SN340
  • Cloud and Hyperscale computing
  • Design Flexibility



Accelerate Access to Critical Data for Data-Intensive Workloads & Applications

Performance NVMe Ultrastar DC SN840 SSDs deliver extreme performance & ultra-low latency to the top tier of enterprise storage. With proven dual-port NVMe architecture, these drives are best suited for performance demanding platforms including HPC servers, mission-critical applications and workloads that require superior read/write performance and low latency.



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Outstanding Performance

Up to 780k random read IOPS

High Capacity

Available up to 15.36TB per drive, allowing for larger storage per server than the previous generation

Quality of Service

Enterprise-class reliability rating, 2.5M hour MTBF

1,920GB
3,840GB
7,680GB
15,360GB
Model Information
Endurance
1DW/D
1DW/D
1DW/D
1DW/D
Max Petabyte Written
3.504
7.008
14.016
28.032
Configuration
Interface
Western Digital NVMe 1.3c Controller, Dual Port PVIe 3.1 1x4 or 2x2
Western Digital NVMe 1.3c Controller, Dual Port PVIe 3.1 1x4 or 2x2
Western Digital NVMe 1.3c Controller, Dual Port PVIe 3.1 1x4 or 2x2
Western Digital NVMe 1.3c Controller, Dual Port PVIe 3.1 1x4 or 2x2
Form Factor
U.2 2.5-inch, 15mm
U.2 2.5-inch, 15mm
U.2 2.5-inch, 15mm
U.2 2.5-inch, 15mm
Flash Memory Technology
Western Digital 96-Layer 3D TLC NAND
Western Digital 96-Layer 3D TLC NAND
Western Digital 96-Layer 3D TLC NAND
Western Digital 96-Layer 3D TLC NAND
Performance
Read Throughput (max MB/s, Seq 64Kib)
3470
3470
3470
3470
Write Throughput (max MB/s, Seq 64Kib)
2280
32550
3200
3190
Read IOPS(max, Rnd 4Kib)
736K
780K
780K
780K
Write IOPS(max, Rnd 4Kib)
108K
159K
160K
149K
Mixed IOPS (max, 70/30 R/W, 4KiB)
231K
389K
373K
401K
Read Latency
74
75
82
84


Highlights

  • Performance NVMe SSDs
  • Capacities up to 15.36TB1 in U.2 2.5" form factor
  • High-performance PCIe Gen 3
  • 96-Layer 3D NAND for Ultrastar DC SN840, DC SN640 and DC SN340
  • Up to 780k random read IOPS3
  • Dual-port high availability
  • Ideal for common enterprise mixed-use workloads
  • Enterprise-class reliability rating, 2.5M hour MTBF

Applications and Workload

  • Cloud and Hyperscale computing
  • Online transaction processing (OLTP)
  • Online analytical processing (OLAP)
  • Virtualization
  • Storage Arrays
  • Storage Servers
  • SQL Servers
  • Pattern Recognition
  • Artificial Intelligence
  • Machine Learning