Western Digital Ultrastar DC SN840

Performance NVMe™ SSDs Enable Enterprise Workloads

NVMe™ adoption in the data center continues to grow as modern applications and workloads demand more performance. Performance NVMe SSDs are designed for primary storage for HPC servers and primary storage in external storage arrays.

Performance NVMe™ SSDs Enable Enterprise Workloads

Performance NVMe SSDs target cloud compute and enterprise workloads that require low latency to data and high availability of data. 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 3rd generation of performance NVMe SSD for data center with PCIe Gen 3.1 (dual-port), NVMe 1.3, providing up to 3,470/3,300 MB/s Sequential Read/Write and up to 503K IOPS mixed random 70/30 read/write performance.

Dual-port Leadership

Ultrastar DC SN840 extends Western Digital’s leadership in dual-port architecture by vertically integrating proven flash controllers. Dual-port high availability supports two redundant paths to the SSD, and is critical to ensuring access to data in the event of a failure in the data path.

Full Specifications

Capacity

Interface

Compatibility

Dimensions (L x W x H)

Operating Temperature

Non-Operating Temperature

Sequential Read Performance

Sequential Write Performance

Random Read

Random Write

Endurance (DWPD)

Read Latency (μs, avg)

Operating Power (W, max average)

6.4 TB

PCIe 3.1 1x4 or 2x2 (Compliant to NVMe 1.3c)

Compatible with Windows, Windows Server, and Linux

3.95" x 2.75" x 0.59"

0°C to 70°C

-40°C to 85°C

3470 (max MB/s, Seq 64KiB)

3200 (max MB/s, Seq 64KiB)

780KIOPS (max, Rnd 4KiB)

253KIOPS (max, Rnd 4KiB)

3

82

18W

Product Numbers

SE, 1.6 TB

ISE, 1.6 TB

TCG, 1.6 TB

TCG FIPs, 1.6 TB

SE, 1.92 TB

ISE, 1.92 TB

TCG, 1.92 TB

TCG FIPs, 1.92 TB

SE, 3.2 TB

ISE, 3.2 TB

TCG, 3.2 TB

TCG FIPs, 3.2 TB

SE, 3.84 TB

ISE, 3.84 TB

TCG, 3.84 TB

TCG FIPs, 3.84 TB

SE, 6.4 TB

ISE, 6.4 TB

TCG, 6.4 TB

TCG FIPs, 6.4 TB

SE, 7.68 TB

ISE, 7.68 TB

TCG, 7.68 TB

TCG FIPs, 7.68 TB

SE, 15.36 TB

ISE, 15.36 TB

TCG, 15.36 TB

TCG FIPs, 15.36 TB

0TS1874

0TS2045

0TS2052

0TS2059

0TS1875

0TS2046

0TS2053

0TS2060

0TS1876

0TS2047

0TS2054

0TS2061

0TS1877

0TS2048

0TS2055

0TS2062

0TS1878

0TS2049

0TS2056

0TS2063

0TS1879

0TS2050

0TS2057

0TS2064

0TS1881

0TS2051

0TS2058

0TS2065