This high performance dual eSATA dock for your 2.5” or 3.5" SATA HDD/SSDs lets you duplicate/clone an existing hard disk drive without the use of a host computer system, or dock and swap drives from your desktop or laptop computer simultaneously, using a single USB or eSATA port. Versatile Features This standalone USB 3.0 (USB 3.1 Gen 1) dock offers convenient dual-function performance. As a hard drive duplicator, the cloner lets you create an exact sector-by-sector clone from one hard drive to another (1:1), including partitions and boot sector information, ensuring data integrity and consistency for sensitive operations, such as data recovery. As an SSD/HDD docking station, the multiple hard drive copier lets you connect your drives through either eSATA or USB, with each drive slot individually supporting high capacity 2.5/3.5" hard drives tested up to 4 TB. Fast Performance With support for SATA III (6 Gbps) you can maximize efficiency with duplication speeds up to 22 GB per minute, and eSATA docking speeds up to 6 Gbps. The 2-bay hard drive cloner can also be connected through USB 3.0 with UASP for transfer speeds up 5 Gbps. Hassle-Free Operation With push button operation and plug-and play installation, the duplicator dock has been specially designed for hassle-free operation. This eSATA cloner lets you quickly dock your hard drives or start duplicating hard drives with the push of a button. Chipset ID: JMicron - JMS562 This HDD/SDD duplicator dock is backed by a StarTech.com 2-year warranty and free lifetime technical support.