Ocean Technology via Amazon offers the Unitek 40-watt 5-Port USB Desktop Charging Station in White for $23.99. Coupon code "UBSVGHBS" cuts it to $17.99. Plus, Prime members bag free shipping. That's $28 off and the lowest price we could find. It features a Quick Charge 3.0 USB charging port, four additional USB charging ports, 4.9-foot power cord, and protection against over-heating, over-current, and over-charging.