Patuoxun via Amazon offers the Mpow 4-Port Portable USB 3.0 Hub in Black or White, model no. W5PH4, for $15.99. Coupon code "HU41MPOW" cuts it to $11.99. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise it adds $5.10.) That's $5 under the lowest total price we could find for a similar hub. It's backwards compatible with USB 2.0 and features a 12" cord.