Fangrui Product Details 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 Is More Convenient,direct Plug-in Design, No Need To Install, Just Plug It In And It Run, Making It Easier To 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,22110/2280/2260/2242/2230(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 Expans