Ocean Technology via Amazon offers the Unitek Ultra-Slim 3-Port USB 3.0 Hub with Gigabit Ethernet Adapter, model no. Y-3149, for $21.99. Coupon code "XXUN9GNV" drops it to $10.99. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.05.) That's $35 off list and the lowest total price we could find. It features data transfer speeds up to 5Gbp/s and a 10/100/1000Mb/s Gigabit Ethernet port.