Drive only, the pictured enclosure will not be included. The WD Blue SN580 Gen4 X4 PCIe 16Gb/s NVMe 1TB Internal SSD is a high-speed solid-state drive from Western Digital. With a read speed of 4150MB/s and a 4x write speed, this SSD offers fast data transfer rates. It has a storage capacity of 1TB and uses the NVMe interface for efficient performance. The blue color and WD Blue product line make it easily recognizable and reliable for enhancing the speed and responsiveness of your computer.