USB 3.0 eSATA Dual Hard Drive Dock UASPThe SDOCK2U33EB Dual 2. 5 3. 5" SATA hard drive docking station lets you dock and swap hard drives from your desktop or laptop computer simultaneously using a single eSATA or USB port. For fast performance and efficient data transfers when connected through eSATA, the docking station supports full SATA III transfer speeds up to 6 Gbps. For universal compatibility, the dock can be connected through USB 3. 0 with transfer speeds up 5 Gbps plus support