This M.2 PCI-E 2.0 Riser Card is a B+M Key Converter that supports 5/2.5 Gbps data transfer rates. It is compatible with mini PCI-E slots and can expand 2 or 4 SATA 3.0 ports. The card supports SATA6Gbps devices and is backward compatible with SATA 1.5Gbps and 3.0Gbps devices. It also supports IDE programming interface registers, AHCI programming interface registers, and Message Signal Interrupt (MSI). The card is compliant with Serial ATA Specification 3.0 and supports communication speeds of 6.0Gbps, 3.0Gbps, and 1.5Gbps.