SE-EHD-11P is intended to be connected to a Power eSATA port (also designated “Power over eSATA”) that, in addition to the eSATA data signal, also provides a circuit voltage of +5V/DC and +12V/DC. A 3.5" SATA hard drive or a 2.5” SATA hard drive can be installed in the docking station.( You must have a PeSATA Port to use this dock, if you do not have, please check our PeSATA front panel, metal bracket, PCIe eSATA Adapter Card..etc)Features• Power supply via Power eSATA port, no separate mains adapter necessary• One SATA hard drive plug-in type (either 1x 6.35cm/2.5” or 1x 8.89cm/3.5”)• On/Off switch on the rear• Easily boot from different OS by changing the hard disk on the dock• Best for testing and DIY set up• Support all OS• Support SATA I/II/III hard disk with any capacity• PeSATA cable included in the package • Docking station• Power eSATA cable Check out our other items!On Apr-10-14 at 20:14:36 PDT, seller added the following information: