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Western Digital Ultrastar DC SN640 6.4 TB 2.5" PCI Express 3.1 NVMe 3D TLC

SKU
0TS1955
Out of stock
Western Digital Ultrastar DC SN640, 6.4 TB, 2.5", 3100 MB/s

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Overview
Full specs

Overview

Highlights

The Dynamic Data Center Environment

IT organizations have to optimize their infrastructure for the dynamic data center environment by improving utilization of storage capacity for demanding new workloads, improving responsiveness for critical applications, maintaining uptimes and availability, and lowering their TCO. With the advent cloud architectures driving new on premise data center designs utilizing converged, hyper converged, and composable infrastructure with higher performance CPUs, traditional SATA-based storage have become the bottleneck. Whereas, NVMe-based SSDs are designed specifically to maximize performance of flash memory and are widely deployed in the public cloud offering flexibility and scalability at lower costs.

The new Ultrastar DC SN640 NVMe SSD improves performance and responsiveness over the current generation DC SN630 NVMe SSD and offers capacities including 960GB, 1.92TB, 3.84TB, and 7.68TB in U.2. (Gen3.1 x 4). The SN640 includes Western Digital’s industry-leading 96L BiCS4 3D TLC NAND and in-house NVMe 1.3 controller providing 5x read performance improvement over SATA SSDs. The DC SN640 is a cost-optimized NVMe SSDs for broad deployment into cloud/hyperscale and on-prem data centers. The SN640 includes enterprise reliability features including power-loss protection, end-to-end data path protection, and a 5-year limited warranty.

Designed for Workload Flexibility

The DC SN640 is offered in two endurance classes: 0.80 DW/D and 2 DW/D, each for a period of five years. The 0.80 DW/D swim lane is designed for read intensive applications while the 2 DW/D swim lane can be deployed in mixed-use workloads requiring higher performance and endurance levels over the life of the drive providing IT organizations a way to optimize for application performance.

Safeguarding Data

Regulatory and privacy requirements demand the need for increased data security for data at rest. The Ultrastar DC SN640 with Instant Secure Erase (ISE) helps safeguard data with AES-256 encryption engine and provides instant erase upon decommissioning and recommissioning the drive. Secured Firmware downloads with RSA authentication ensure that the drive runs authentic Western Digital firmware only.

Good to know

Features

  • Read speed
    3100
  • Write speed
    1800
  • SSD capacity
    6400
  • Random write (4KB)
    116000
  • Random read (4KB)
    469000

Operational conditions

  • Storage temperature (T-T)
    -40 - 85

Other features

  • Operating temperature (T-T)
    0 - 78

Logistics data

  • Harmonized System (HS) code
    84717070

Full Specs

    Features
    • Read speed
      3100
    • Write speed
      1800
    • SSD capacity
      6400
    • Random write (4KB)
      116000
    • Random read (4KB)
      469000
    • Component for
      Server/Workstation
    • Uncorrectable Bit Error Rate (UBER)
      < 1 per 10^17 bits read
    • Read latency
      225
    • Hardware encryption
      Yes
    • SSD form factor
      2.5"
    • NVMe
      Yes
    • NVMe version
      1.3
    • Security algorithms
      256-bit AES
    • Mean time between failures (MTBF)
      2000000
    Operational conditions
    • Storage temperature (T-T)
      -40 - 85
    Other features
    • Operating temperature (T-T)
      0 - 78
    Logistics data
    • Harmonized System (HS) code
      84717070
    Power
    • Power consumption (idle)
      5
    • Power consumption (average)
      12
    • Operating voltage
      12

More Information

Specifications

  • Operating voltage
    12
  • Uncorrectable Bit Error Rate (UBER)
    < 1 per 10^17 bits read
  • Hardware encryption
    Yes
  • SSD form factor
    2.5"
  • NVMe
    Yes
  • NVMe version
    1.3
  • Storage temperature (T-T)
    -40 - 85
  • Operating temperature (T-T)
    0 - 78
  • Component for
    Server/Workstation
  • Harmonized System (HS) code
    84717070
  • Security algorithms
    256-bit AES
  • Mean time between failures (MTBF)
    2000000
  • Read speed
    3100
  • Write speed
    1800
  • SSD capacity
    6400
  • Power consumption (idle)
    5
  • Random write (4KB)
    116000
  • Random read (4KB)
    469000
  • Power consumption (average)
    12
  • Read latency
    225

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