I used it once, but I'm selling it because I don't plan to use it anymore. No PC required, copy entire SSDs and HDDs with the push of a button. Easily back up massive amounts of data with the clone function. The error skip function continues copying even with bad sectors. Supports up to 16TB per slot. Compatible with 2.5-inch and 3.5-inch SATA HDDs and SSDs. Supports USB3.2 Gen.1 connection. As an external USB drive with a maximum speed of 5Gbps (theoretical value). Can be used as a storage destination for data as two large-capacity external USB drives.