This SATA converter enables you to connect a 2.5 SATA HDD or SSD, without using an additional power supply. The converter can be connected to two free USB ports of your PC or notebook, whereas the USB 2.0 connection can supply additional 5 V, if required. The USB 3.0 male connector can be connected to a USB 3.0 port, in order to achieve a higher data transfer rate of up to 5 Gb/s (Super Speed). Furthermore the USB 3.0-A connector is compatible to its forerunners USB 2.0 and USB 1.1, so that you can connect the converter also to a USB 2.0 or USB 1.1 port.