SilverStone's ECM22 is an adapter designed for users wanting to utilize or add speedy M.2 devices such as SSD onto their existing PC or motherboard. In addition to support for one M.2 device (M key) to run via the super fast PCIe interface at up to 32 Gbps, a second M.2 slot (B key) is available for connecting to a SATA III port for increased storage potential. To keep up with ever increasing speed and hotter performing M.2 SSDs, the ECM22 has large, exposed gold inlays to help transfer heat from SSD to its relatively large surface of gold-rich PCB. For users looking to add more M.2 SSD to their PCs with highest performance, the ECM22 is a must have.