Power Over Esata(Not USB), Also called eSATAp, Comb 2-in-1 design easily connects and permits simultaneous use of eSATA devices.
【Please Note】 : this cable only can work with 2.5” HDD, it will NOT work with 3.5” HDD, Because 3.5” HDD need 12V Power.
Supports data transfer eSATA speeds up to 3 Gbps.
Simplifies eSATA data and power connection, Better solution for eSATA drive enclosures with USB power
Please make sure that your PC port is Comb Power Esata Port