ProtoArcBacklit Bluetooth Ergonomic Keyboard, EK01 Plus Full Size Wireless Split Keyboard with Dual Bluetooth and USB, Cushioned Wrist Rest, Rechargeable, Compatible with Windows/Mac/Android, Blue

I just got the keyboard. I have two das keyboards too. I have Model S Professional and the now discontinued 4C TKL. I wanted a ergonomic to go along with them. I had a Microsoft 4000 but it quit working.Coming from the 4000 I must say, this keyboard feels good. Connected right up to my TP-Link Bluetooth Dongle. My Logitech Master 3 mouse is connected to the dongle too, and is not effected.So far I'm liking the ProtoArc. Nice build quality, all the keys are working. I'm typing on it right now. I have no complaints so far. I'll do a update in several months after I have typed on it for some more. It's a nicely made keyboard. I have the das keyboards too. coming from to this keyboard has not been a problem. I'm used to working on laptops and S7 Tablet with keyboard case, so no big deal changing configurations. If you are looking for a good ergonomic keyboard, I believe the ProtoArc is worth the money.

I've tried a whole bunch of keyboards. My favorite before I went ergonomic was the mechanical keyboards with cherry MX blue switches, and getting an ergonomic keyboard with mechanical switches is expensive. Of all the ergonomic keyboards I've tried, this has been the best combination of value and function.Insignia ergonomic keyboard - cheap, space bar especially hard to press, sometimes other keys hard to press as well. The cheap keyboards with full size keys seem to have this problem.ZSA Moonlander - expensive! Awesome keyboard, but too much time fiddling with software mapped key placement, not to mention that certain keys I was used to HAD to be remapped because there just weren't as many keys as a full size keyboard. Also couldn't get used to keys placed in columns or placement of keys under thumbs.Microsoft Sculpt - somewhat expensive, chews up batteries in the keyboard and mouse much faster than equivalent Logitech products. Replacing batteries gets tiresome. Some instances of repeated key presses, especially space bar. The detached number pad always gets lost in my desk.Pros - this keyboard has chicklet style keys like the Sculpt, which I think makes it easier for a manufacturer to produce an inexpensive keyboard that still feels good. It has an internal rechargeable battery, can be recharged via USB C, doesn't seem to cause any repeated key presses, and looks really nice in blue. It has conventional key placement and an attached number pad.Cons - The "Super" key (Windows key or Mac Command Key) doesn't have the Windows logo that I'm used to, so it takes me just a second longer to figure out what I'm doing with that key for now.Unknown - I haven't really figured out how long the internal battery is going to last.

I have been a devout Microsoft comfort curved keyboard user for many years... I have gone through at least a couple dozen of them between work and home over the past decade or so. I have used several variants, but all have been wireless. They worked great for me and now it appears that they have discontinued them. Booo. For the mouse I used it, but usually I use a Logitech M510 as I find it more comfortable. That all said, I have tried other brands and they were all substandard to say the least, including the abysmal Logitech K350 that is simply bad on all counts.That led me to start a renewed search for a quality curved/ ergonomic keyboard. I was getting discouraged until I came across the ProtoArc unit... I ordered one in blue and decided to give it a chance. At first it was different -- not bad, just different with key location and feel. I have used split keyboards before and after a couple of days, I was in a rhythm. The things I miss are the hot keys for the calculator and mute. I use both often and do miss them, but have come to grips that I can still mute with F11 key and for the calculator I can create a hotkey shortcut. Not as svelte as the MS keyboard, but at least it is a workaround without having to stray over to the mouse. As far as function overall I do like the keyboard and it does have several redeeming qualities that the MS units lacked -- the biggest is I do use a desktop and an laptop -- it allows me to switch between both with only a keystroke. That is nice and has prevented me from constantly having to switch the dongle if I want to use it on a second (or third) system. There is a key devoted to locking my system -- and at work it is something I always did with a key combination -- so I guess I swapped mute for lock.... and I use lock much more often. Otherwise typing is smooth and the only missed letters are by the operator...me! The only change that I need to make is to use my left hand of my space bar more often...I am ambidextrous but do tend to use the right half more. Practice and persistence will definitely fix that.So overall really like the look and feel... definitely more modern and the finish is matte so no reflections. Keystrokes for me are nice and as mentioned above --different-- but definitely good and overall quiet. Is it a good replacement...yes! I do plan to buy more soon for work and home.