SNANSHI eSATA USB Combo Port Cable for DVD Optical Drive to SATA 3FT Power eSATA (eSATA+USB combo) to 22 Pin SATA cable Supports full eSATA data transfer speeds and 5V to 12V of power Plug and Play This cable works mostly with 2.5 Inch HDD due to laptop or PC mostly offers 5V power ,If you use it with your 3.5 " HDD, then please make sure that your USB devices offer 12V Power Length:1M | 3Feet Color:Black