Hehe not sure I can jam one of them in my Macbook Pro (not 'till I get an imac eventually at least!). I'm actually looking at the moshi ilynx 800 (Moshi iLynx 800) as it looks like it plugs into fw 800 and usb and consequently can handle the higher power draw, which suggests it should be useful for things like the duet 2 and maschine, both of which are usb 2 and you don't want to start mucking about with as latency will ruin both hehe.
How come 4 ports? Is any more going too much of a power drain?
Yes, sort of. I had a 7 port from D-Link and have another from Belkin (both powered).
The same amount of power delivered to the hub from the wall is delivered evenly in 4 ports and in most (if not all) 7 ports. I can't remember but in either the D-Link manual or the Belkin manual I read about this.
The reason I was reading this exciting manual in the first place is because things that would normally work fine (w/ a four-port powered hub) were no longer getting enough power- even when using only 3 of the 7 seven ports.
For Mac, I'd recommend a Macally (preferred) or Belkin four-port powered hub.
They also do not 'kill sound'; they transfer 1's and 0's.
Actually, to my own surprise, they can cause latency. I have a MIDI keyboard that is connected to a MOTU MIDI Express 128. The MOTU is USB powered only. In an effort to relieve my computer, I connected the MOTU to a powered 4 port hub and then the hub to the computer. This caused such bad latency that it was unusable. (I tried three different hubs- three different companies: Macally, D-Link and Belkin)
The only fix was to skip the hub entirely and plug the MOTU directly into the Mac.
This example shows MIDI latency- so I don't have any experience as to whether the same will hold true for audio.
P.S. The tech at MOTU was suprised at the latency as well. He was under the impression that it would work fine w/ a powered hub.
wow gearslutz is the kind of place where you can find two posts like the last ones.. one saying one thing and the next one the opposite..
I'm looking for hubs.. so they do introduce latency or not? I've no usb midi interface to test it right now.. so, have you tested it to say it does introduce latency?
p.s. to Scott.. it doesn't surprise me the MOTU response.. they also say their interfaces are sample accurate.. while they are not even millisecond accurate.. (actually around 5ms in certain moments, talking jittering here, not latency)