Description: High speed expansion card: Expansion Card Is M.2 to PCI-E3.0x4 high-speed expansion card based on the NVME , allowing you to upgrade your computer hardware more conveniently.Quality materials: High Speed Expansion Card is made of quality materials, sturdy and stable in performance, and can be used for a long time without performance degradation.Easy to install: NVMe Riser Card is easy to install and does not require any additional drivers. You only need to insert the SSD hard drives into the expansion card, and then insert the expansion card into the PCI-E slot of the computer.Delicate design: M Key SSD Conversion Card has an delicate design and does not take up too much internal computer space. It is an ideal choice for upgrading computer hard drives.Freely expansion: Expansion Card has a four speed design, suitable for four M.2 drive sizes: 2230/2242/2260/2280. Specification: Material:PVCSupport Hard Disk: M Key M.2 (NVME) Interface Size Chart: 104mmx120mm/4.09inchx4.72inch Package Includes: 3Expansion Cards3 Screws6Baffles Note: Please allow slightly errors due to manual measurement and different monitors.