If you lose the USB dongle that comes with the keyboard then the keyboard is useless.

Also... never lose the dongle

What's not to like (and you probably notice that i don't generally like MS)?A: If you lose the dongle (like I did when the cleaning woman at work exerted a bit too much exuberance in cleaning my desk) you can throw the keyboard away

So if you want an excellent ergo keyboard and don't ever have to alternate between normal and ergo, and won't ever lose the dongle, then this is a great choice.

and I lose the USB dongle.

In my case, I damaged the USB dongle and the hardware I purchased is unusable

Apparently, you can only get one of these set ups per computer, and can't lose the wireless dongle or you won't be able to match your setup ever again

the wireless dongle is a custom microsoft wireless and doesn't work 10' away for

Lose the USB Dongle

If you lose the little wireless transceiver dongle, the entire keyboard must be replaced.

I suspect this happens when I travel and leave the USB dongle in my USB port, but, IMHO, with such a compact USB dongle, it should be more sturdy than it is and should be able to travel in the USB port in the computer in a computer bag without receiving damage.

The negative is that Microsoft's USB "bluetooth" dongle is dedicated to the keyboard

Dedicated dongle

Used it for about a year with OSX and experienced no issues whatsoever, but then I broke the USB dongle.

It is very easy to 'install', just plug the dongle in and it works.

Let me repeat this, because it astounds me: if you lose the 5mm dongle, the keyboard is trash.

The wireless dongle is very touchy to how you place it in the USB port

Also, as you might imagine, if you lose the wireless dongle, the device is useless

Plugged the dongle in a usb 2 hub instead, and works just fine.

If I put the wireless dongle too far behind my desk though, I get occasional input stuttering, which is annoying

If you lose or damage the dongle, the $100 keyboard (I purchased the mouse/keyboard combo originally) is useless

Additionally, functions like CTRL+D do not work.

i goodwill’d the number padmy wrists thank you

o- lacks CapLock and

I would like to see a wired version of this keyboard to resolve the N-key rollover issues and the failing to register the letting up of buttons after they have been held for a while