The DataLooper LEDs do draw a decent amount of power so do keep that in mind when using a hub; either use a powered hub, or a 4-port non-powered connected to a USB 3.0 computer port (USB 3 ports put out like twice the power compared to USB 2). I use this one with a USB 3 port and it works fine, even though it’s unpowered (https://www.amazon.com/Sabrent-Premium-Aluminum-MacBook-HB-MAC3/dp/B00N38TQJC/ref=sr_1_7?keywords=4+port+aluminum+usb&qid=1557722546&s=electronics&sr=1-7). Also, keep in mind that whatever else is plugged into the hub is also drawing power, and there’s only so much wattage to go around if it’s an unpowered hub.
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