Features: brand new and high quality This is a bare card design without for case. USB straight into the computer saves the trouble of removing the casing and wiring. Because nvme's ssd generates a lot of heat when it is working, the bare card design can dissipate heat more effectively. nvme ssd to USB3.1 in-line adapter card, (supports USB2.0 and 3.0 interfaces, of course, if you connect 2.0 to run 2.0, connect 3.0 to run 3.0 speed). Support: Support various pci-e protocols for M.2 nvme solid state drives. (for M.2 nfgg with pci-e AHCI and protocols is not supported). Chip: JMS583 3.1 chip, supports mainstream nvme pcie m2 hard drives on the market. Specifications: Material: PCB+Metal Color: As the Picture Shows Product Dimension: approx. 11x2.3cm/4.33x0.91inches Net Weight: 60g/0.13lbs Package Includes: 1Set Nvme Protocol to Usb3.1 In-line Adapter Card note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.