Offline Clone Function - Supports offline clone function, it can be used to clone an existing hard drive without connecting to a computer, easy to duplicate data from one to another hard drive by pressing the CLONE button for about 3 seconds. Please note the target disk must be larger than the source disk. Dual Bay Connections - This dock offers an easy access with two 2.5/3.5 inches HDD SSD SATA I/II/III drives, which is a perfect solution for backup & processing IT data, batch processing data, data recovery, formatting and file transferring. The dust-proof design of the cover gives you a unique experience. Extensive Capacity -This dock enables access to 2 drives simultaneously(Up to 2×16TB). LED indicator light shows power and activity status. Support plug and play & hot swap. On/Off power switch for hard drives protection. Compatible with Windows, Mac OS, Linux and Android. {Note: Your phone should support OTG function then you can easily read the hard disk data.}