Ocean Technology LLC via Amazon offers the Unitek USB 3.0 4-Port Hub for $14.99. Coupon code "GOSDBPVB" cuts the price to $7.99. Plus, Prime members qualify for free shipping. (Non-members can spend $35 to qualify; otherwise, it adds $8.15.) That's the lowest total price we could find by $7. It supports transfer rates of up to 5Gbps.

Also available is the Unitek USB 3.0 Dual Display Universal Docking Station, model no. Y-3704, for $85.99. Coupon code "JGM9TFZ8" cuts the price to $59.99. With free shipping, that's the lowest total price we could find by $35. It supports resolutions up to 2048x1152 via HDMI and 1920x1200 via VGA and provides audio input/output, Gigabit Ethernet, and two USB 3.0 ports.