4x MORE SPEED with this Thunderbolt 3 Drive that delivers a lightning fast speed up to a 40 Gbps data transfer rate compared to a USB-C SSD 3.1; Transfer up to 450 gigabytes of data in a few minutes instead of hours with a 2400 MB/s read and 1200 MB/s write rate using NVMe technology that interfaces directly with a Thunderbolt 3 PCIe x3 lane