You're going to want something that requires external power. Bus-powered hubs are spotty and drop off a lot. Not good when performing with multiple USB-MIDI controllers. I've yet to find a hub that can last for a more than a year. They all seems to stop working altogether. I've gone through a handful of "ok" ones, but it's time to suck it up and buy a nice one (like this: http://www.amazon.com/Charging-Adapter-Included-VL812-B2-Chipset/dp/B00EYXZI4M/ref=pd_bxgy_pc_img_z)