You can always use more USB ports. This device adds nine 3.0 ports!

The Satechi 10-Port USB 3.0 Hub adds nine additional USB 3.0 ports and one iPad-charging port to your PC or Mac. This allows you to connect and use USB devices such as digital cameras, external hard drives, flash drives, and printers, all from a single hub. Three switches control each group of three USB 3.0 ports and each group is lit with an attractive blue LED when powered on. Don't forget it has to be powered by a USB 3.0 port on your computer to provide data rates of up to 5.0Gbps. Shipped with an AC power supply, the Satechi 10-Port USB 3.0 Hub features electric current stability of the connected USB devices. It does not require any software, or drivers, just plug and play. Slim, strip-shape design the Hub saves  desktop space. The 10th port, located on the end of the hub, is capable of charging your iPad and features an On/Off switch. iPads are typically unable to charge from a computer's USB ports, so the Satechi 10-Port USB 3.0 Hub provides unique functionality compared to similar hubs. Portable enough to move between systems or take on the road. MSRP $69.99. As of 3/17/2014, it was on the company website for $59.99. 

http://www.satechi.net/index.php/computer-accessories/usb-hubs/satechi-10-port-usb-3-hub