Kinesis Maxim USB-PS/2 Combo Keyboard, native USB with PS/2 adapter

I have used practically every keyboard out there with ergonomic claims. This is BY FAR the best one. I used the first one every day for six years with my desktop computer. Pros: Wonderfully adjustable keyboard. Light touch keys help with hand fatigue. Raised dots on index fingers on J and F keys (good for touch typists). The light color (it's not black like so many keyboards are these days) helps see the keys when light is dim or for people with vision issues. Has a backspace AND a right Delete key. Great for people with wrist/hand or shoulder pain problems as you can adjust to your liking. Cons: Does not have the calculator number setup keys that most keyboards come with. The wrist rests are kinda flimsy and the little tabs that hold them in place easily break off (and can't be fixed). I tried fixing by taping them to the keyboard with duct tape and other ways but was not very successful in keeping one of the wrist rests on the keyboard. In addition, the center tabs that allow you to raise the keyboard in the middle can become flimsy and break too. Even without one of the wrist rests attached normally, and even with the middle piece breaking off after two years I set it up with work-arounds (I just put a spool of thread under the center to keep it raised) and I still kept using the keyboard because it was the best for my disabilities. So I am giving it a Five star rating despite it's "delicate" nature. This year I finally I spilled some water nearby which caused some of the keys to stop working entirely and despite having other ergonimic keyboards on hand to use, I ordered another one of these. I just couldn't work without this model. So now I have a brand new one with working wrist rests and middle lifters. Very happy. Worth the price.

The whole world seems to think that the microthin chicklet keyboards are whats "cool". They look nice, but your wrists *will* hurt if you type more than a few hours a day for any length of time. Carpal tunnel and RSS are brutal and almost a career ender for me (I'm a computer engineer - somedays I'm on the keyboard 12+ hours a day). This keyboard can be adjusted so that your wrists don't bend inward and are rotated to a natural position. It may seem counter intuitive, but really you are just used to flat keyboards that look neat but don't care about your fingers or wrists. But after 10+ of computer use, your wrists *will* hurt.This keyboard is/was a critical part of reducing wrist pain and allowing me to do my job comfortable. This it the 4th one of this I've bought. I literally wore two out, one got covered in epoxy (long story), now I have one at work and one at home.You should be using an ergonomic keyboard, and this is the best bang per buck. Adjustable for height and wrist rotation! Do it. (And related get a Logitech M570 thumb ball mouse and save your shoulder / mousing hand also).It may take a few weeks of getting used to, but once you do it's way more comfortable. I refuse to use straight/flat keyboards and you should too.

I am a Software Engineer which means I have to type a lot on a daily basis and I have bought this keyboard twice from Amazon. The first time was when I was with my previous employer and started feeling discomfort in my hands and fingers. A colleague recommended that I try this out as it had helped him with his carpal tunnel and he had been using it for over a decade without feeling any more discomfort what so ever. I immediately bought it upon his recommendation and since that day the pain is no more. The second time I bought this was recently when I changed employers. I started using the Microsoft Sculpt Comfort Keyboard and the pain was back! I immediately got on Amazon and ordered this, the pain is no more for the second time!Easy to use - plug and play (wired keyboard).Multiple options - can be used as a straight flat keyboard; adjustable to 3 different heights; can be split to multiple widths; detachable, height-adjustable wrist supports, and a combo of all these options.Truly ergonomic! This actually worked for me in eliminating discomfort in my fingers, palm, wrist, forearm, and shoulder. Does what it is supposed to do.It will take a little bit of time to get used to typing on the keyboard since the keys are not in their "normal", or should I say, abnormal place once you split it.This is a 6/5 star product! Probably the best purchase/investment I have ever done.

I mostly like this keyboard for what it is. It's sturdy and works well, and you can put it in enough positions that you should be able to find a comfortable one with a few minutes of twiddling.However, other than the mechanical doodad-ness on the bottom, it's basically a default early-1990s-style keyboard, and at this price I'd prefer to see at least one or two bells/whistles. For example, it has no extra keys (like the Logitech G15) or multimedia or application keys (like almost every other keyboard created since 1995), and while those aren't necessary for text-only stuff I do find them useful for UI customization and adding special character mappings. IMHO it also has a bit of a learning curve: The Home/End/etc. cursor control keys are arranged unusually, and if you use the wrong hand to hit a key in the middle while the keyboard is folded out, you'll find yourself tapping at the gap until you learn not to.For anybody worried about operating system/hardware compatibility: This, like the vast majority of USB keyboards and mice, follows the normal USB HID protocols. This means that it works just fine and without any special drivers in any remotely modern OS on any remotely modern hardware, including Windows, MacOS/Darwin, Linux, Android, etc. and even video game consoles.

for someone with arthritic hands/wrists, this is your answer. This is such a relief for your joints to be able to split the keyboard, and getting used to it is easy. I pretty much wore out my first split keyboard and quickly looked around for the best price to purchase another one as quickly as possible.P