![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.
![Western Digital Ultrastar® SSD 1920GB (WUS4BB019D7P3E1)DC SN640 SFF-7 7MM PCIe TLC RI-0.8DW/D BICS4 SE - whatisit Western Digital Ultrastar® SSD 1920GB (WUS4BB019D7P3E1)DC SN640 SFF-7 7MM PCIe TLC RI-0.8DW/D BICS4 SE - whatisit](https://www.whatisit.sk/vendors/phpThumb/phpThumb.php?w=450&h=450&sia=cf22ef2b8bb2ee647ccba2b907f253e2.jpg&src=/uploads/70/products/71463/cf22ef2b8bb2ee647ccba2b907f253e2.jpg&far=1)
Western Digital Ultrastar® SSD 1920GB (WUS4BB019D7P3E1)DC SN640 SFF-7 7MM PCIe TLC RI-0.8DW/D BICS4 SE - whatisit
![Amazon.co.jp: Western Digital Ultrastar DC SN640 2.5インチ 7.7TB PCI Express 3.0 x4 NVMe ソリッドステートドライブ : Computers Amazon.co.jp: Western Digital Ultrastar DC SN640 2.5インチ 7.7TB PCI Express 3.0 x4 NVMe ソリッドステートドライブ : Computers](https://images-fe.ssl-images-amazon.com/images/I/31Je3VfR0uL.__AC_SX300_SY300_QL70_ML2_.jpg)
Amazon.co.jp: Western Digital Ultrastar DC SN640 2.5インチ 7.7TB PCI Express 3.0 x4 NVMe ソリッドステートドライブ : Computers
![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)