WHat can i say it takes a while to get used to but once you do it's really good. the keys are nice and soft for people who struggle with finger issues yet still maintains the satisfying click as you push down on the button. It types well and is nice to use. it's very large so just be aware of that.

I mysteriously "lost" my favorite mouse. And every time I went to the store to purchase a new one they were sold out...Recently the connection was made. I have the Microsoft 4000 again. I purchase 2 because unfortunately like most items in this day and time its (disposable) being discontinued.

How ergonomic do you want to be? Microsoft 's newest PC/Mac keyboard gives the company four different variations of the familiar QWERTY layout, from classically flat to roller-coaster curved. It's the weirdest-looking, but promises to be the most comfortable, of them all.

Microsoft is the only hardware company still engineering new ergonomic keyboard designs, but that doesn't mean they've gotten lazy. Their new Natural Ergonomic Keyboard 4000 is the most comfortable computer input device I have ever used.

Between school and this website, I've been finding myself typing more and more recently. So under the guise of ‘health and safety', I decided it was time to ditch the regular keyboard and spring for an ergonomic one.

The Microsoft Natural Ergonomic Keyboard 4000 is a small but interesting step forward for Microsoft. While you may be familiar with Microsoft's Natural Keyboard Elite Pro which has been around for almost seven years, the Natural Ergonomic 4000 adds a curved keywell to the split, tented design.

Aside from my key switch and programmability complaints, this is a great keyboard; The additional parentheses keys above the numeric keypad are a huge help when doing calculations; The range and number of programmable additional keys is good, with application and program control extended to anything...

This keyboard would be the perfect; all around productivity keyboard if it had professional quality mechanical key switches instead of the membrane key switches found in almost every consumer keyboard on the market.

Keyboards don't get any better than this -- at least not with currently available technology. The Microsoft Natural Ergonomic Keyboard 4000 is quiet, comfortable, and overall a joy to work with. Highly recommended to anyone interested in a more comfortable computing experience.

We checked out a mouse/keyboard kit about a week ago and today we have another keyboard from Microsoft. I have always been a fan of the natural keyboards and was sad to see when Microsoft released the less natural keyboard, but boy was I wrong.

Lastly, PCMag.com's Joel Durham recommends the Natural Ergonomic Keyboard 4000 as the best reasonably priced keyboard. The Microsoft Natural Ergonomic Keyboard 4000 has been on the market for a relatively long time, and most professional reviews are on the old side, but even newer comparisons and...

Comfortable; Easy to use; Customizable; Mac compatible

No USB hub; Stiff keys; some say; Noisy spacebar