Built-in quick drive erase and Secure Erase functions.EASILY DUPLICATE & DOCK: With speeds up to 4.2 GBpm copying one hard drive to three (1:3) and a capacity of one 4TB drive per bay, this external multi SSD/HDD copier dock makes cloning quick and easy.Access up to 4 SATA hard drives simultaneously over a single USB 3.0 or eSATA connection.PLUG & PLAY: The standalone USB 3.0 hard drive duplicator/wiper lets you quickly copy your SATA (I/II/III) or SAS disk and sanitize with confidence without connecting to a host computer or laptop.Dual, variable speed fans allows you to adjust the amount of cooling for any kind of environment or drive type.1 Purge compliant Secure Erase function.VERSATILE USE: This USB 3.1 (USB 3.1 Gen 1) SATA hard drive copier/wiper for the IT professional features one duplication mode and quick drive erase or NIST 800-88 Rev.Integrated LCD display for duplication progress and options menu.SuperSpeed USB 3.0 compliant host interface with supported data transfer rates of up to 5 Gbps.Create 3 exact copies of a source SATA drive simultaneously, without having to connect to a computer.