One-click offline cloning of dual disks for simultaneous reading and writing,No need to connect to a computer, just plug two hard drives into the base and the copy button to copy the data from drive to the target drive, making data backup easier. High-speed transmission means no more waiting for transmission,2GB files can be transferred in about 1 second, high-speed transmission of hard disk data improves work efficiency. Convenient direct plug-in hard drive replacement is more convenient,Direct plug-in design, no need to install, just plug it in and it run, making it easier to replace multiple hard drives. Supports multiple M.2 hard drives,Vertical plug-in design, no size restrictions, suitable for 5 different specifications of M.2 NVME solid state drives,22110 or 2280 or 2260 or 2242 or 2230(Support). 360 hollow heat dissipation for fast reading and writing without hot,Hollow and unobstructed design, 360 unobstructed heat dissipation of the hard disk, no overheating and no lag Product model:SD08 Maximum expansion:4TB per disk, total capacity 8TB Transmission speed:20Gbps Support hard drive:M.2 NVME 2230 or 2242 2260 or 2280 or 22110 power supply:12V2A Applicable equipment:Laptop or mobile phone or tablet or game console, etc. (The product appearance and printed words depending on the batch, but this does not affect use) Voltage: AC230V Plug Type:UK Plug,it applies to Malaysia, the United Kingdom and so on. Color: As shown Material: aluminum alloy Package Contents: 1 x NVME PCIE Dock 1 x adapter 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.