Two USB port of your Laptop/Notebook/Desktop to Power High-Power USB 2.0 Devices such as Mini Portable Hard Drives.
This custom Cable will Allow High Power Drives that Require more than 500ma (standard USB port maximum output is 500ma of power) by joining two USB ports power output into one MINI B USB port.
USB+Power connectors combine standard USB contacts with additional power contacts to address applications where power requirements exceed capabilities of standard USB
Downward Compatible to 1.0 and 1.1
USB Type A-Male DATA+POWER
USB Type A-Male POWER
USB Type-A Mini-B Male Connector
Some Example Drives
Western Digital : WDCA029RNN
Western Digital : WD Passport