preventing usb bus overload.


I read that if the music on my external hard drive connects to my PC by usb (which it does) instead of by firewire, then I should not connect my PC to my DAC by usb because it could overload the usb bus and cause some kind of issue. What's my solution here? (a newer PC with optical s/pdif or coax output?)
Can somebody explain in laymen terms? I'm new and "trying to learn cuz I listen". Thanks!
128x128labguy
Have a look at this website. They offer many different solutions.

http://www.icydock.com/index.php
USB is like a hose - all the water coming out takes from somewhere else. Why not try a NAS drive and connect by ethernet? I have a drobo, 4 terabytes, maybe $450?
Cerrot
Are you suggesting to connect a NAS with Ethernet cable to the macmini. I thought a NAS drive connects wireless, and to be honest I don't like WiFi all that much.
Thought?
George
"04-04-15: Yioryos
Cerrot
Are you suggesting to connect a NAS with Ethernet cable to the macmini. I thought a NAS drive connects wireless, and to be honest I don't like WiFi all that much.
Thought?
George"

You can do it either way. The hard drives need to be connected to the network. It doesn't really matter if its a wireless connection, or not. You're probably thinking of a cloud type setup.
I've heard connecting multiple USB cables is a matter of audio quality/jitter concerns. I know independent labs measured it high. I use a Mac mini as a music server and there was a question of which port to use for audio. Most said the USB port closest to the A/C outlet was preferred as this would eliminate "noise" in an aluminum bodied Mac mini. Personally, I didn't notice noise, regardless of USB port used. Of course, I use a DAC.

But Apple seems to have eliminated audio quality/jitter concerns with the release of the current/uni-body generation of Mac minis.