Supports two M.2 SSD simultaneously (One interface and one NVMe interface) Converts one M.2 NVMe SSD (M Key) interface to PCle 4.0 x4 interface (PCIe 3.0 2.0 1.0 Compatible), Converts one M.2 SSD (B Key or B+M Key) interface to 6Gbps interface ( cable connection required). With advanced heat sink solution, PCB 24 X 5 copper hole effective ventilation heat dissipation, Including 2 heat sinks Supports M.2 SSD size 2230, 2242, 2260, 2280, 22110mm Including a regular size slot brackets for flexible system chassis installation. LED power and data transfer status. No driver installation required Product name: NVME hard drive adapter expansion card Number of interfaces: M KEY NVME interface*1 B KEY interface*1 Applicable slot: PCI-E X4/X8/X16 Bus bandwidth: Theoretical speed 32Gbps Product size: 120MM x 142MM x 68MM Applicable system: Support for NOTE: You are kindly that the 7-pin cable must be connectedto motherboard if you want to read the M.2 SSD (Key B). You are kindly that this adapter only support PCIe X4 X8X16 slot. DO NOT support PCIe X1 and PCI slot. Colour:As Shown Material:PCB Package Contents: 1 * PCIE Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.