[Adapter Card]This adapter card has 4 expansion cards that can simultaneously expand 4 x 32 Gbps full-speed signals. High quality: Adopts a solid structure and uses thicker PCB material to stabilise the PCIE X16 interface and protect important data. [M.2 NVMe SSD to PCIE X16M Key Adapter Card]The motherboard supports the PCIE split or PCIE function and supports the transfer protocol PCIE 3.0, 4.0. [Good Performance]No disk loss, no speed reduction, no blocking and equipped with a high-performance DC power chip to stable operation of the M2.NVME SSD. Easy to use: 4 hard drives are equipped with 4 LED indicators and the operation is easy and convenient to use. Colour: Black Material: Plastic+Metal Package Contents: 3 x adapter card 15 x screws 12 x nuts 3 x screwdriver 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.