Wired Keyboard gives low powered notice even on powered hub

I purchased my MBP in february and with it one of the new wired keyboards. Since purchasing the keyboard, I have been unable to use it unless it is plugged directly into the MBP. I've tried using a powered Belkin 4-port USB hub (FSU021) with no luck. I've also installed the keyboard firmware update.
I'd like to be able to have all my peripherals plugged in via the USB hub, but the keyboard is being especially difficult.
I know it is not having a power issue with one of the other devices plugged into the hub, because it will not work even if it is the only device plugged in. If it's of any use, my Mighty Mouse works just fine with the hub.

Just bought an Apple wired aluminum keyboard today, plugged it into my MBP and have the same problem.
I also had difficulty getting the computer to recognize the keyboard, had to insert the USB plug several times before it grabbed the connection so the firmware update would load.
Interesting. I have a powered USB hub connected to the other USB port but it's full. I don't like stacking USB hubs but that looks like the only option.
-a-

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This suggests that the keyboard can, in fact, pass the power to the device when hooked up to the new iMacs and that the limitation is somehow software (or firmware) based and not a function of the USB architecture.
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Hello mac community,
I have owned a imac i5 27" for just over a year and it has just starting always automatically pushing the P button then capslock p button, then P again. I have tried both restarts the Vram I think and the other restart. Which was unplugging the power for 15 or more seconds then plugging back in, the other one was the hold command p and r and the home button i think. It restarted then restarted again, but it is still doing the same thing. I even restarted with the keyboard unplugged and it is still doing it. I have a wired keyboard not bluetooth.
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By rebooting do you mean reinstalling the Mac OS?
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People report it is still possible to use a wired USB keyboard with the CCK, if you use a powered USB hub to get around the "not enough power" error message. (I have done this with an older Apple USB keyboard my non-jailbroken iPad1 on iOS 4.3.3.) Normally, powered USB hubs have a AC power adapter so you lose portability unless you can find a battery powered USB hub. At this point, the (in)convinience of the USB hub becomes an issue, depending on what you get.
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I have a 2011/2012 21.5 inch iMac (intel), with a wired keyboard (with numerical pad) and mouse. When I'm on the desktop (finder) and i select a folder, the up button on the keyboard moves 'down' (one folder) and then won't move again. The down button and sideways buttons work fine, and it appears all the other keys do to. When I go into a program like safari the up arrow works fine, I can scroll pages up and down without a problem.
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Also, I forgot to add, that in iTunes and spotify the up button works, but as it does it makes that error-y sound as if it is not working (even though it is)

Desktop wired keyboard keycaps

http://www.replacementlaptopkeys.com/servlet/the-19502/Apple-iMac-Keyboard-Key/D etail
I saw this and I noticed there are two keycap types.
I have an older apple wired keyboard and two new ones. I noticed they feel quite differnet. The old one is much clickier and both of these two new keyboards are much more silent and require more force. I don't like the new ones since they require a noticible amount of more force.
Anyone else notice this? My old apple wired keyboard is about two years old and it's not due to use. All the keys are lcicky, even the ones I don't use often like the home key.

does the wired keyboard work in another computer?
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I don't think that keyboard is damaged because i've seen that i'm not the only one with same problem, even with same volume keys problem. But it can be factory bug in keyboard or OSX. SMC resets didn't helped me, i did 3. However the strange thing is that when my iMac is not fully loaded after restart everything works perfect, but when everything loads up 100%, then function keys stops working and starts working again after unplugging the keyboard. I forgot to mention, that i did reinstall of OSX (not clean).
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Message was edited by: Carolyn Samit

Wired Keyboard USB Power Supply Problem

Hello,
I'm a proud owner of an iMac 27" which I ordered with the Apple Wired Keyboard because it was equipped with two additional USB Ports.
I'm using the Astro Gaming Astro A40 with their Mixamp and it works perfectly fine if I plug it into the keyboard.
Now I installed Bootcamp with Windows 7 Professional and it tells me the power supply in the keyboard is to low for my headset and my Mixamp.
Does anybody know a solution for that problem?
Why does Windows cry about that while Mac is perfectly fine with this.
I hope somebody can help me. Thank You
With best regards
ChickenDuy

From
Support FAQ - Astro Gaming
For PC Users: Much like discrete graphics, audio, or physics hardware free up CPU cycles and make our games run faster, the USB drivers built into the MixAmp provide a simple plug and play solution to offloading communication and music duties to the MixAmp.
My guess would be that these drivers are not loaded in OSX. When you run Windows via bootcamp, these drivers are loaded. Based on the function described, they draw more power from your USB bus than they would in the OS X environment. Yet the machine is still only willing to supply 500 mA to the particular hub. I think, therein lies the problem. Or, atleast, a theory.

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On an iMac 3.06GHz Core 2 Duo 4GB RAM, I'm using the MicroSoft Wired Keyboard 600. Often on booting/rebooting--or even sometimes after waking from sleep--keyboard won't work. Unplugging USB connector doesn't always work, so I have to shut down and start all over. Not using Intellitype. Suggestions? Thank you.

You downloaded what Microsoft's menu based webpage suggests should be the right drivers. Does it add a system preference to control your keyboard in Apple menu -> System Preferences? Does it add an application or a utility in your Applications folder? If neither, post here to find out if it is compatible with your version of 10.6:
http://www.officeformac.com/ProductForums/MacOtherProducts/

Wired Keyboard gives low powered notice even on powered hub

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