Designed for their ZCentral 4R Rack Workstation, the 4TB Z Turbo Opal 2.0 PCIe 4.0 M.2 Internal SSD Kit from HP has a capacity of 4TB and an M.2 2280 form factor. It drives fast data transfers using its PCIe 4.0 x4 interface and Tri-Level Cell (TLC) flash memory. This SSD is also an Opal 2.0 Self-Encrypting Drive (SED) for added security. A heatsink and a screw are included.