This X8 is an external SSD that promises write speeds above 1 GB/s, which is an impressive number for any USB storage based device. It achieves this by using a mixture of NVMe QLC cells (basically the same technology we saw in our review of their P1 NVMe M.2 drive) with further improvements which are specific to external storage devices. Of course all of this is achieved if your computer has a USB 3.2 Gen2 (Type C) in order to have access to the full 10 Gb/s bandwidth. Also it comes with a Type A adapter to facilitate a wider compatibility but at half of the speed (5Gb/s).