1、5/5 inch universal serial port 4 bay hard disk duplicator, support offline copy and online read and write functions. 2、Both serial hard disks or hard disks converted to serial ports are applicable, and support 4 hard disks to copy at the same time. 3、Online reading and writing support UASP acceleration protocol, 10 minutes intelligent sleep function. 4、The KRD display shows the progress of light copying, self‑checking hard disk function, buzzer alarm. 5、Maximum support capacity of a single disk is 16tb, USB0 interface transmission, support hot plug, plug and play. 1 x Hard Drive Dock1 x Power Adapter1 x Power Cord1 x USB Cable4 x Card Slot1 x User Manual Item Type: Hard Drive Docking StationModel: K3094AInterface: USB 3.0Support Hard Disk: 2.5& 3.5 Inch SATA Interface HDD&SSD Hard DiskSupport System: For Windows/OS X/LinuxFunction: Support Hot Swap, Plug and PlayDisplay: LED Indicator Shows Working StatusExternal Power Supply: Power Adapter 12VTheoretical Transmission Speed: 5Gbps(USB 3.0)/480Mbps(USB 2.0)Interactive Instructions: Power Indicator: Red OnDisk Position Indicator: Red On3 "Beep Beeps" When the Hard Disk Copy Starts3 "Beep Beeps" When the Hard Disk Copy Is CompletedThe hard disk copying alarm prompt sound "beep beep" for a long time (the capacity of the source disk is larger than the capacity of the sub-disk, and the damaged part of the track during the hard disk copying process will cause an alarm, and the power must be turned off manually)Specification: EU PlugVoltage: 100-240V