[nickjj]

This would be a problem with any keyboard that's resting on the same surface as your microphone stand.

So in your case, it's not because the keyboard is loud. It's because you have huge rumble vibrations getting through to your mic, and this is masked with your laptop's keyboard since it's absorbing some of that.

If you look at the link in the post it has a sample of what the keyboard sounds in a typical screencast scenario when you have a proper microphone stand.

No standalone keyboard is going to prevent rumbles if you have it sitting on the same surface as your mic. Especially if your desk or microphone stand is wobbly (but it would still happen on a heavy stable desk too).