WD Ultrastar DC SN840 WUS4BA138DSP3X1

Performance NVMe SSDs enable enterprise workloads. The adoption of NVMe in data centers continues to rise as modern applications and workloads demand greater performance. The Western Digital Ultrastar DC SN840 Performance NVMe SSDs are designed for primary storage in HPC servers and primary storage in external storage arrays.

Performance NVMe SSDs target cloud computing and enterprise workloads that require low data latency and high data availability. These applications include real-time data analytics, cloud computing, OLTP/OLAP databases, artificial intelligence (AI), machine learning (ML), pattern recognition, and virtualization. The Ultrastar DC SN840 is Western Digital's third generation of high-performance NVMe SSDs for data centers, featuring PCIe Gen 3.1 (Dual-Port), NVMe 1.3, offering up to 3,470/3,300 MB/s sequential read/write performance and up to 503K IOPS mixed random 70/30 read/write performance.

Dual-Port Leadership. The Ultrastar DC SN840 expands Western Digital's leadership in dual-port architecture through vertical integration of proven flash controllers. Dual-Port high availability supports two redundant paths to the SSD and is critical for accessing data in the event of a data path failure.

Specifications:

• Capacity: 3.84TB
• Form Factor: 2.5-inch
• Sequential Read Performance: 3470MB/s
• Sequential Write Performance: 3250MB/s
• Random Read: 780K IOPS
• Random Write: 159K IOPS
• Interface: PCIe 3.1 1x4 or 2x2, NVMe 1.3c
• Security: SE
• Endurance (TBW): 1
• Dimensions (L x W x H): 100.45mm x 69.85mm x 15mm
• Weight: 172g
• Model Number: WUS4BA138DSP3X1
• Operating Temperature: 0°C to 70°C
• Non-Operating Temperature: -40°C to 85°C
• Certifications: BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme.