Plastic material,5V/3A power adapter. SSD Interface:M Key, B&M Key Input Interface:USB3.2 Type-C Gen2X 20Gbps Support System:FOR Windows/for Mac/for Linux Support M.2 NVME SSD This is only a ssd docking,it doesn't contain the hard disk. please pay attention to the following matters when using the offline clone function. 1. back disk(B) must be larger capacity(eliminate space loss) than front disk(A), Plug in identify Source Disk(front port) and Target Disk(back port), Connect power supply and switch on power. (make sure that the USB cable is disconnected) 2. To avoid your disk file ,please don't stop the device when it's under clone function. 3. When copy disk,please make sure disk B is empty,or the former file in disk B will be loss.(if disk B has file before,and just want to copy from disk A,please don't use offline clone function,just copy and paste on computer) 4. When offline copy the disk,please don't connect the computer,if connect the computer,disk will be under reading,can not support copy(device heating is normally,as big hard disk operate will be hot) 5. if the clone is interrupted,you need to restart the device and clone again. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC220V Color:Black Material:Plastic Package Contents: 1 * M.2 NVME SSD Clone