Ocean Technology via Amazon offers the Unitek USB 3.0 4-Port Hub in Black for $14.99. Coupon code "QNLIUBSG" cuts it to $7.49. Plus, Prime members receive free shipping. That's $13 off and the lowest price we could find. It features three USB 3.0 ports plus one smart charging port, data transfer rates up to 5Gb/s, an aluminum housing, and micro USB power port for charging high-powered devices (micro USB cable sold separately).