oh man. ive heard not to use a hub due to latency THOUGH others swear by them. but definitely the consensus is to get USB hubs with their own throughput and power (can repost djtt artivle if you want). you definitely have USB 2.0, they wouldnt make new computers with USB 1.0. anywho, here is the audio 8 driver instructions for mac. pretty vague. i cant click down on anything cuz cant remember my NI password, and when i do the forget password its asking for serial numbers!