Features 1、2GB/S BANDWIDTH: The M.2 NVMe riser card allows 2xM.2 PCIe 3.1 SSDs to share PCIE 3.1 X8 bandwidth (2GB/s), and you can access 2xM.2 PCIe SSDs individually or set up soft for RAID in 3rd party software for Windows, for OS X, for Linux. 2、PCIE BIFURCATION FUNCTION: This host adapter (for ASMedia ASM2812 chipset) has PCIE fork functionality and is not dependent on PCIe forks supported by for MOBO, so your motherboard does not require PCIE fork functionality. 3、PCE 3.1 X8 CHANNELS: Each SSD uses separate PCE 3.1 x8 lanes without interfering with each other, which means most motherboards will work with this dual M.2 PCIe SSD host adapter. 4、COMPATIBLE DRIVE SIZES: Compatible with M.2 SSD PCIe NVMe all sizes 110x 22mm, 80x22mm, 60x22mm and 42x22mm. motherboard available PCIe 8x/16x slots, compatible with PCIe 3.0/2.0/1.0 standard. 5、PLEASE NOTE: Please ensure for BIOS, for UEFI support native NVMe and OS boot from PCIe channel, host adapter support boot from M.2 PCIe SSD or M.2 PCIe for RAID OS, for OS or 3rd party software for RAID configuration acceleration or use in storage pool. Hardware for RAID is not supported. Specification Item Type: Dual M.2 PCIE NVMe Adapter Card Material: PCB Support Interface: 2xM.2 (NVME) Interface Motherboard Interface: PCIE 3.1X8 (X16 Compatible, PCIE 3.0/2.0/1.0 Standard) Chipset: ASM1812 Chip Support Hard Drive Size: 2230/2242/2260/2280/22110 Read Write Speed: 2GB/s Package List 1 x Dual M.2 PCIE NVMe Adapter Card 2 x Screw 2 x Nut