Silverstone SST-ECM28 1 x NVMe & 1 x SATA M.2 SSD to PCIe x4 1U Adapter Card. Allows concurrent usage of both M.2 SSD slots. . ECM28. 1 x NVMe & 1 x SATA M.2 SSD to PCIe x4 1U Adapter Card. - Suits 1U form factor chassis at only 32mm total height. - Support 1 x NVMe M.2 SSD (M key) utilizing PCIe x4 interface. - Support 1 x SATA M.2 SSD (B key). - Allows concurrent usage of both M.2 SSD slots. - Supports PCIe Gen4. - Supports SATA 6Gbps. - Built-in LED status indicator. - Supports PCIe CLKREQ# function. 32mm total height, fits easily inside 1U form factor chassis . . . Allows concurrent usage of both M.2 SSD slots. 1 x M.2 PCIe SSD (M key) with PCIe x4 interface. 1 x M.2 SATA SSD (B Key). . . Supports 2230, 2242, 2260, and 2280 lengths M.2 SSD. . . Built-in LED status indicator. .