The product includes a hard disk storage box designed to store and protect your hard disk. Compatibility and connections - Left side: only protocols hard disks can be inserted. - Right side: only NVME protocol hard disks can be inserted. Cloning and operation - After the protocols hard disk and NVME protocols hard disk are correctly inserted, ensure the hard disk test indicators are on. If the indicators are not on, check whether your hard disk protocols meet the requirements. - Press and hold the offline cloning button. The cloning progress indicators will flash. - Then press the button briefly to start automatic cloning. Reading and writing capabilities - Reading and writing function: supports reading and writing of hard disks. - NVME support: supports reading and writing of NVME hard disks. - Simultaneous operation: supports simultaneous reading and writing of hard disks and NVME hard disks. Use scenarios - In repair shops or IT departments, perform offline cloning to migrate data from an existing drive to a new drive without using a computer. - For data backups, clone drives to spare disks to create quick offline backups. - During drive upgrades, duplicate content from old NVME or standard drives to new NVME or standard drives as part of a streamlined workflow.