Part#: 0TS1851

Ultrastar DC SN640
from Western Digital

Security

5-Year Limited Warranty
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    The Dynamic Data Center Environment With a Western Digital Ultrastar DC SN640 SSD

    The Ultrastar DC SN640 NVMe SSD is a mainstream NVMe™ SSD targeting broad deployment as boot, caching, or primary storage in data center IT and cloud environments.

    Product Details

    Mainstream NVMe™ SSD for Data Center IT and Cloud Deployment
    The Ultrastar DC SN640 NVMe SSD is a mainstream NVMe™ SSD targeting broad deployment as boot, caching, or primary storage in data center IT and cloud environments. The DC SN640 is optimized to deliver the highest performance and consistent QoS read latency when running random mixed workloads typically generated by enterprise applications such as virtualization, OLTP, NoSQL, web servers, file servers, and mail servers.

    The DC SN640 NVMe SSD is ideal for replacing SATA SSDs by delivering 6x improvement in sequential read performance and 3x improvement random mixed read/write performance. The DC SN640 boosts data center performance and responsiveness as direct attached, distributed storage or in large scale cloud deployments.

    The DC SN640 includes Western Digital’s 96-Layer BiCS4 3D TLC NAND and Western Digital’s NVMe 1.3 controller and incorporates enterprise reliability features, such as power-loss protection, end-to-end data path protection, and a five-year limited warranty.

    Designed for Workload Flexibility
    The Ultrastar DC SN640 is available in two endurance classes: 0.8 DW/D2 (capacities from 960GB-7.68TB)1 and 2 DW/D2 (capacities 800GB-6.4TB). The 0.8 DW/D SKU features tunable endurance, giving customers the flexibility to configure endurance and performance for seasonal burst workloads.

    Full Specifications

    Features
    • Reliability up to 2M hours MTBF
    • Instant Secure Erase (ISE) and AES-256 encryption
    • Enterprise features including variable sector sizes, end-to-end data path protection and Power Loss Protection.  TCG Ruby models include 128 namespaces, NVMe-MI version 1.1.
    Capacity
    3.84TB
    Form Factor
    U.2
    Compatibility
    • Windows, Windows Server, Linux
    Sequential Read Performance
    3330MB/s
    Sequential Write Performance
    2040MB/s
    Random Read
    511K IOPS
    Random Write
    82K IOPS
    Interface
    PCIe Gen 3.1 1x4, NVMe 1.3c
    Security
    TCG Ruby
    Warranty
    5-Year Limited Warranty
    Dimensions (L x W x H)
    100.45mm x 69.85mm x 7mm
    Weight
    95gms
    Model Number
    WUS4BB038D7P3E5
    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, TUV, UL

    Product Numbers

    800GB
    800GB
    960GB
    960GB
    1.6TB
    1.6TB
    1.92TB
    1.92TB
    3.2TB
    3.2TB
    3.84TB
    3.84TB
    3.84TB
    6.4TB
    6.4TB
    7.68TB

    Featured Resources

    Disclosures

    1. One megabyte (MB) is equal to one million bytes, one gigabyte (GB) is equal to 1,000MB (one billion bytes), one terabyte (TB) is equal to 1,000GB (one trillion bytes), and one petabyte (PB) is equal to 1,000TB. Actual user capacity may be less due to operating environment.
    2. Endurance rating based on DW/D using 4KiB 100% random write and JESD 219 workloads over 5 years.