Features: new and Compliant with PCI for Express specification revision 3.0, backward for PCIE V2.0 and V1.0 motherboards. Compliant with Serial ATA specification revision 3.0. Support for M.2 for Key for M NVMe SSD, including 2230, 2242, 2260 and 2280 drives. Support any for M for key for M.2 SSD. The drive size is 110, 80, 60, 42 and 30mm. Specifications: Applicable type: for M.2 NVMe SSD conversion Bus slot: PCIe X8 rev3.0 Media interface: 2 x for M.2 for Key for M NVMe SSD connector SSD type: for M.2 for Key for M SSD size: 2230, 2242, 2260 and 2280, 22110 drives Operating system: Win 7 / Win 8 / Win 8.1 / win 10 3264bit, Linux Note: The main board supports PCI-E split function and can set PCI-E X4X4X4 or 4X4 mode; The main board supports PCI-E for RAID function; ASUS- motherboard supports the function of HyperM.2X16 expansion card; Different motherboards have different PCI-E split channels, and some motherboards have a PCI-E for RAID of X8 + X4 + X4. This motherboard 4-bit for M.2 card can only support three for M.2 SSDs or devices, and 2-bit for M.2 card can only support one for M.2 SSD or device. Package includes: 1PC x Dual NVME for RAID PCI-E X8 split card 1PC x baffle 1PC x Screwdriver 1Set x screws