Two USB keyboard damage in one week

Hello folks,

just a question to you all if this only happens to me.


I am woundering that I crashed two Apple USB keyboards during a few days on my iMac 21.5 since I installed El Capitan.

Both were not longer working after I restarted / rebootet the iMac. 100% damage, also not working on other computers.


It might be 100% coincidence OR it might be my iMac.


But on the end I had never problem with that on all my Mac´s so I am woundering if an OS could maybe rise up the power on USB ports in a booting process?

Any idea is helpful.


BTW: why isn´t Apple building and blutooth keyboard with numpad?

Replies

It isn't software related, but you might have a 'hot' USB port. Meaning that the motherboard is putting too much power on the USB port. Try hooking a USB keyboard into a USB hub?


How old is your Mac?


Apple will build or won't build what it will. My guess is the larger size reduces portability and extra power requirments might have diswaded Apple from building that kind of keyboard.