CableCreation 50CM Power Esata (eSATAp) to Sata 22Pin HDD (7Pin + 15Pin) Cable, Comb eSATA USB 2.0(Not Common USB) Power Data Cable Adapter for 2.5" Hard Disk Drive 0.5M/1.6ft Black 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