This is a 1TB Gen4 NVMe M.2 solid-state drive that comes with a heatsink, and the listing names it for use in a PC or a PlayStation 5. As an SSD it has no moving parts, and the NVMe interface links it directly to the PCIe bus of the board it is fitted to. The heatsink is there to help with cooling during long installs and heavy file transfers. The 1TB size leaves room for a large games library, apps and saved files. This is a new, boxed accessory.