Powered USB hub slows down 2012 imac?

[seamer]

Hi,

I've tried several USB3 hubs from different vendors and had complete slowdowns (but not beachballs) when using them. This is most noticible when I'm moving my mouse around, which either freezes or doesn't register a mouseclick the first time. If I remove the hub, activity returns to normal.

Currently using a J-Tech Digital 4-port USB3 (powered) with a Logitech cordless mouse (unified receiver), and the standard Apple bluetooth keyboard.

Any ideas on the cause?

 

[ColdCase]

You may need to look for hubs that are compliant with all the USB3 stuff, not just those specs that are convenient. Belkin and Pluggable are two brands that offer USB3 hubs that work with the Mac.

Otherwise, what OS are you running?

 

[seamer]

I believe Belkin was the first hub I tried.

10.8.5 for the OS

 

[Teddymama]

No such relationship between usb hub and other peripherals ？

Hi,

I've tried several USB3 hubs from different vendors and had complete slowdowns (but not beachballs) when using them. This is most noticible when I'm moving my mouse around, which either freezes or doesn't register a mouseclick the first time. If I remove the hub, activity returns to normal.

Currently using a J-Tech Digital 4-port USB3 (powered) with a Logitech cordless mouse (unified receiver), and the standard Apple bluetooth keyboard.

Any ideas on the cause?

Actually I don't think there is any relationship between the usb hub and other peripherals like mouth and keyboard.But I don't think you post your issue clearly. Does "slowdowns" refer to the slow reaction of your Imac?

 

[pastrychef]

Are you saying the hubs you tried caused interference with your wireless mouse?

 

[seamer]

Are you saying the hubs you tried caused interference with your wireless mouse?

I'm not sure how I would word it. The results weren't consistent; sometimes the mouse would work fine for an hour or it would lock up as soon as I turned it back on.

If my next hub has this problem too, I'll make sure to keep an eye out for interference as well as computer impact.

 

[Bear]

From Using USB 3 devices on Mac computers FAQ:

I sometimes have difficulty with Wi-Fi or Bluetooth devices when USB 3 devices are attached to my computer. What could be wrong?

Some USB 3 devices, hard drives in particular, can generate radio frequency interference that can cause Wi-Fi and Bluetooth devices operating in the 2.4GHz band to have issues communicating with your computer. Do not place hard drives or other USB devices behind the rear of your Mac near at the hinge of your screen. The antennas for Wi-Fi and Bluetooth are located there, and USB 3 devices placed there may interfere with your wireless connections. See this white paper for more information.

The Logitech Unified Receiver is also apparently in the 2.4GHZ range. So USB 3 interference may be the issue.

 

[magilla]

From Using USB 3 devices on Mac computers FAQ:The Logitech Unified Receiver is also apparently in the 2.4GHZ range. So USB 3 interference may be the issue.

Definitely in the Logitech Unified Receiver/USB3/interference ballpark. Good luck to the OP in getting any kind of relevant customer/technical support from Logitech with his mouse though. Logitech is notoriously lousy on that point (personal experience and that of others).