The product is prepared with a hard disk storage box, exquisite appearance and high-quality materials, which can store and protect your hard disk, and also facilitate you to carry it for office and entertainment. The product is compatible with more devices with a two-in-one data cable (USB-C/A to USB-C) The product not only adds a non-slip design at the bottom, but also adds a inside the product, which is more non-slip and more handy. The appearance is atmospheric and luxurious, and it is also suitable for business office. Plug and play, easy to operate Note:Please insert the m.2 sata protocol hard disk into the left slot of the hard disk duplicator, and insert the M.2 nvme protocol hard disk into the right slot of the hard disk duplicator. Offline hard disk cloning (supports copying data from the M.2 SATA protocol hard disk to the M.2 nvme protocol hard disk or copying data from the M.2 NVME protocol hard disk to the M.2 sata protocol hard disk); After correctly inserting the M.2 sata protocol hard disk and the M.2 NVME protocol hard disk, wait for the hard disk test indicator to be on (if the hard disk test indicator is not on, please check whether your hard disk protocol does not meet the requirements), press and hold the offline cloning button for 3s, and you see the cloning progress indicator flashing, and then short press the button to start automatic cloning. Hard disk read and write function: Supports separate reading and writing of M.2 sata protocol hard disk Supports separate reading and writing of M.2 NVME protocol hard disk Supports simultaneous reading and writing of M.2 sata protocol hard disk and M.2 nvme protocol hard disk Colour:Black Material:Plastic Package Contents: 1 * M.2 SATA Duplicator 1 * USB Cable 1 * Chinese andEnglish instruction manual 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.