HIGHROCK 30cm USB 2.0 a Power Enhancer Y 1 Female to 2 Male Data Charge Cable Extension Cord(1pc) 100% Brand New USB 2.0 A female to dual USB A male Y Power Enhancer cable. USB 2.0 A female to dual USB A male Y Power Enhancer cable. Does one USB port not supply enough power for your USB device This Sync USB Power Adapter Y cable for your is the solution.This cable allows for power to be taken from 2 USB ports, like a PC and External hard drive. USB 2 Male TO USB Female Allows you to link 1 USB device into 2 USB Ports on your PC for more power. There are times you may have an external device, such as a portable 2.5 hard drive, and a standard USB cable is not able to transfer enough power to operate the device.Note: The red marked Male cable is just for charging to bring more power; Another is Charging & Data Sync Cable