![Boston Limited on Twitter: "The Ultrastar DC SN640 from @westerndigital is optimised to deliver the highest performance and consistent QoS read latency when running random mixed workloads typically generated by enterprise applications. Boston Limited on Twitter: "The Ultrastar DC SN640 from @westerndigital is optimised to deliver the highest performance and consistent QoS read latency when running random mixed workloads typically generated by enterprise applications.](https://pbs.twimg.com/media/E-MoElRWQAARW52.jpg:large)
Boston Limited on Twitter: "The Ultrastar DC SN640 from @westerndigital is optimised to deliver the highest performance and consistent QoS read latency when running random mixed workloads typically generated by enterprise applications.
![Amazon | Western Digital Ultrastar DC SN640 2.5インチ 3.8TB PCI Express 3.0 x4 NVMe ソリッドステートドライブ | ウエスタンデジタル(Western Digital) | 内蔵SSD 通販 Amazon | Western Digital Ultrastar DC SN640 2.5インチ 3.8TB PCI Express 3.0 x4 NVMe ソリッドステートドライブ | ウエスタンデジタル(Western Digital) | 内蔵SSD 通販](https://m.media-amazon.com/images/I/71ENnc1By6L._AC_SL1500_.jpg)
Amazon | Western Digital Ultrastar DC SN640 2.5インチ 3.8TB PCI Express 3.0 x4 NVMe ソリッドステートドライブ | ウエスタンデジタル(Western Digital) | 内蔵SSD 通販
![WD Ultrastar DC SN640 WUS4CB032D7P3E3 - solid state drive - 3200 GB - U.2 PCIe 3.1 x4 (NVMe) | Grand & Toy WD Ultrastar DC SN640 WUS4CB032D7P3E3 - solid state drive - 3200 GB - U.2 PCIe 3.1 x4 (NVMe) | Grand & Toy](https://cdn.cnetcontent.com/syndication/feeds/wd/inline-content/7D/0C494EDAA089C908CB047274415EBA6BC13856D8_LPA4JHE1DRU_i_priview_2.jpg)