The WD_BLACK SN850X 8 TB (WDS800T2XHE-00CDD0) is an internal NVMe SSD for adding high-capacity storage to a compatible computer. Its integrated heatsink is part of this model, distinguishing it from the version without one.
The drive uses the M.2 2280 form factor and connects through M.2 M-Key PCIe 4.0 x4. The listing specifies sequential speeds of up to 7,200 MB/s read and 6,600 MB/s write, useful for moving large files and loading stored data quickly. It is built with 3D NAND TLC memory.