Will a USB 3.0 hub work ok when plugged into a USB 2.0 computer? I have a mid 2012 Mac Pro desktop running the latest OS. Need at least 7 ports. Currently have a Belkin 2.0 seven port hub, but every so often it seems to drop out, and I have to reconnect the A/C adapter to bring everything back online. Seems like when my computer goes to sleep it no longer powers my devices after waking up, till I disconnect, and reconnect the A/C adapter. Weird.