A:Answer Hi CB, Please know that WD Black SN750 NVMe SSD comes with PCIe Gen3 interface, has M.2 2280 form factor. The drive comes in two variants, with/or without heatsink. More information on WD Black SN750 NVMe SSD: http://products.wdc.com/library/SpecSheet/ENG/02-05-WW-04-00054.pdf -Need Help? Please see our "'Contact Us" page for information.