Extra power for your USB 3.0 external HDD with 2x USB Type-A connections (one for power, one for data)!
Portable devices are really great, except that being portable, they often have demands too great for a single USB port to power them. If you're experiencing this problem, then this handy USB 3.0 Micro B to 2x Type-A (male) Y-Cable just might be what you're looking for.
This cable works like a regular USB 3.0 data cable for your external HDD, with a Micro USB 10-Pin plug going to a standard USB 3.0 Type-A plug, only you get an extra USB Type-A plug to supply extra power from another port. How clever! This is especially handy for external hard drives and other high-power items that require additional power to run.
This cable is designed for a device that has a USB 3.0 Micro 10-Pin female socket to supply power and data transfers.