This 1-foot USB (Universal Serial Bus) A to Micro B Y-Cable provides 2 USB (Universal Serial Bus) "A" Male connectors & 1 USB (Universal Serial Bus) micro "B" Male connector, providing the ideal solution for supporting the additional power required by some Micro USB (Universal Serial Bus) external hard drives connected to the standard USB (Universal Serial Bus) ports provided by most computers. Especially valuable in situations where a single USB (Universal Serial Bus) 2.0 port may not offer sufficient power to external hard drives, the USB (Universal Serial Bus) A/ Micro B Y-cable can be connected to 2 ports on 1 PC, to increase the power output to the external device. Aside from the additional power provided, this 1-foot cable also offers pure digital data transmission for high speed file transfers.