1.Allows user to use standard M.2 M-Key nVME SSD to desktop PC PCIe x4/x8/x16 slot, but speed at 4X speed only 2.M card dimension. 2 type 2230/2242/2260/2280 3. Only supports PCI-e based M Key M.2 Socket 3 SSD, does not support M.2 SATA bus B key SSD 4. Everlasting Durability: Made of high quality and superior material to achieve longer lifespan, powerful heat sink function 5. Easy Installation, Plug and Play Product Parameters: Product Name: M.2 SSD to PCI-E 4X Type D Adapter Interface: PCI Express Application: Laptop Color: Black Material: PCB + Metal Package Contents: 1 * M.2 SSD to PCI-E 4X Adapter 1 * M.2 SSD Heatsink 2 * Heat Conductive Silica Gel Pad 2 * silica gel ring 1 * installation accessories Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The allowable measurement error is +/- 1-3 cm.