Please note: This adapter only works with 2.5 sata laptop hard drives or 2.5 ssd drives. This will not work for Desktop 3.5 inch Hard Drives. USB 2.0 interface, support hot plug ,plug and play,data transfer rates up to 480Mbps and also compatible on USB 1.0, USB Y cable supports 7200rpm HDD or more. Powered via laptop USB port, no external power required Connects 2.5″ 7+15pin SATA HDD/SSD to laptop via USB port for easy test and data transfer When lack of power, plug the additional USB connector upto the laptop Note: Hard Disk is not included. Yes I'm Intersted