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. This problem can be easily solved by using the USB 2.0 "Y" Cables.The cable features a red molded hood for the auxiliary USB A connector, allowing the user to easily distinguish between main and auxiliary power. Foil and braid shielding reduces EMI/RFI interference and a twisted-pair construction helps reduce crosstalk, ensuring high-speed, error-free data transfer. This cable is compatible with USB 1.0, 1.1, and 2.0 specifications.