Description: brand new and high quality. Feature: Made of high-quality metal material, durable, firm and stable for you to use. USB 3.1 high speed transmission, you can download the files, watch videoes and for play games in seconds without blocking. Up to 10Gbps speed rate, driver free, for play and plug, easy and simple to us eand operate. USB 3.1 interface, it is also for fro USB3.0 and USB2.0. Adopts the Type C GEN2 10G version chip, for JMICRON JMS583, durable and stable. Supports most for NVME M2.SSD, does not support the old SATA standard M2.SSD. Support System: for WinXP/for Vista/Win7/Win8/WIN10 32/64Bit, for MAC10.8 and above. Specifications: Item Type: Hard Disk Box Material: Metal Size: 12.5x4x0.95cm/4.9x1.5x0.3in Color: White, Black Optional Type: 1, 2, 3, 4 Support Interface: USB3.1 TO for M.2 KEY-M Support System: for WinXP/for Vista/Win7/Win8/WIN10 32/64Bit, for MAC10.8 and above Quantity: 1 Pc Installation Method: 1.Please remove the screws with the screwdriver, then open the for case. 2.Use the screwdriver to pull the yellow screw to pull out the inner board. 3.Remove the yellow screw plate, then install the for M.2(for NGFF) SSD into the it. 4.Finally lock the yellow screw plate , then install the box for case. Note: Transition: 1cm=10mm=0.39inch Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes:(Optional) Type 1/2: 1 x White/Black Hard Disk Box 1 x C-C Cable 1 x Some Accessories Type 3/4: 1 x White/Black Hard Disk Box 1 x Some Accessories