Silverstone ECM28 1 x NVMe & 1 x SATA M.2 SSD to PCIe x4 1U Adapter Card

32mm total height, fits easily inside 1U form factor chassis. Supports 2230, 2242, 2260, and 2280 lengths M.2 SSD. Legacy SATA (B key) : Used for SATA SSDs, and interfaced through the AHCI driver and legacy SATA 3.0 (6 Gbit/s) port exposed through the M.2 connector. PCI Express using AHCI (M key) : Used for PCI Express SSDs and interfaced through the AHCI driver and provided PCI Express lanes, providing backward compatibility with widespread SATA support in operating systems at the cost of not delivering optimal performance by using AHCI for accessing PCI Express SSDs. PCI Express using NVMe (M key) : Used for PCI Express SSDs and interfaced through the NVMe driver and provided PCI Express lanes, as a high-performance and scalable host controller interface designed and optimized especially for interfacing with PCI Express SSDs. NVMe has been designed from the ground up, capitalizing on the low latency and parallelism of PCI Express SSDs, and complementing the parallelism of contemporary CPUs, platforms and applications.