LogitechMX Master 3S Wireless Mouse and Ergo K860 Split Ergonomic Keyboard - Quieter Clicks, Faster Scrolling, Adjustable Palm LiftCarbon Neutral Certified by SCS Global Services

UPDATE 2 (7 Aug 2021, ~7 months into ownership).I found the Microsoft context-sensitive menu pop-up key -- equivalent to the right mouse button -- of the MS EP4000. See picture. I don't love this location. But at least it exists. I'm moderately used to it's weird inaccessible placement. But I do have to always look to find it, instead of knowing it's location by muscle memory, like most keys. I probably should put one of those raised gummy circles (like on my delete key and fn key here in the pic) on it.Also, I like this keyboard now so much that I bought one for the office too. It's outside office standards, so I paid for it myself. (This really helps avoid the constant disorientation of working on two different keyboard between home and work.)UPDATE (7 Apr 2021, a few months into ownership).The problems I wrote about below, seem to have miraculously evaporated. I have no idea why. Now this keyboard only spams the volume-up (or down) signal to my PC maybe once a month. And I’ve found that just taking the USB fob out for a second, and cycling the power button on the keyboard clears that every time, and takes maybe 5 second. For something that happens maybe once a month, I can live with it. It is otherwise a very comfortable, fast, easy, quiet keyboard. I’ve even become accustomed to toggling between F-keys and media keys. All in all, this is my new favorite keyboard.ORIGINAL REVIEWThis seems the best option for users who loved their Microsoft Ergonomic Pro 4000. Same split layout, and the other keys are more nearly where muscle memory expects them to be (INS, Home, pg up, DEL, end, pg down). And the key action is awesome: actually way faster than the MS EP4000. ... BUT:WARNING #1:Around 1-4 times a week, the communication between my PC and this keyboard locks in some weird setting, like increasing the volume. I can unintentionally get max volume this way in <1 second, with zero forewarning. Happens when I haven't even touched the associated media key.At that time, no other inputs are possible, since the keyboard is busy spamming that one keystroke to the PC. The only solution is (after ripping my headphones off) to remove the USB fob from my PC, wait a minute, plug it back, and hope for the best.Usually that works. But sometimes it's just more of the same, and I have to manually restart my PC. At least that (a reset) always fixes it. But it's a terrible interruption to workflow. You can lose important work that way!This happens on both my self-built PC (keyboard drivers installed), and on my HP laptop (keyboard drivers not installed). So, it's not a problem with my PC. It's not a mechanical sticking (no key is physically wedged): it's a logical sticking.To be clear, it's not just "volume up" that gets locked active. Other keys too. Volume down. And toggles between apps. And stuff I can't really explain/describe: I just see a lot of fibrillation on my monitor, as the various apps go nuts - so far without editing content, but long term who knows?I should RMA this keyboard, but the key action is so damn fluid - I type a lot faster on it - that I'm dragging my feet on the RMA. That, and it's otherwise the prefect replacement for my beloved Microsoft Ergonmic Pro 4000.WARNING #2:I HATE that I have to toggle between the F-keys between F-functions and media key functions. I am not used to that. My old keyboard -- like many who buy this, I bet -- was a Microsoft Ergonmonic Pro 4000 (before Microsoft ruined that line with their terrible 7000 update). It had physically distinct media keys vs. F-keys. So I'm used to adjusting sound volume instinctively, without thinking about it, and ditto hitting F2 to edit a cell entry (e.g., in Excel), or hit F11 to enlarge my browser (to remove navigation bar shrubbery). But on this Little Compromise of a keyboard, I have to constantly recover from hitting an F-key/media with the toggle set to the wrong usage. Aarg!I am slowly learning to press the F/media key toggle, while watching my monitor for the brief flash that tells which mode it's in, then deciding whether to repress the F/media key toggle again, before trying to get either an F-key or a media key to perform some function. I'm Not loving that!I would REALLY prefer a keyboard set-up like the MS Ergonomic Pro 4000, but that is probably tied up in a patent, that MS won't release or reasonably license, but neither will they manufacture them anymore. Oh, you may still find one on eBay, used, for $300. Ugh.WARNING #3:The Microsoft context-sensitive menu pop-up key -- equivalent to the right mouse button -- of the MS EP4000, is missing. Replaced by a second key: "opt/ctrl". You'd think the driver software would let you program this key to do different things. I have not found how to make it act like the awesome key that it replaced (the Microsoft context-sensitive pop-up menu key). I'm still mourning the loss of that little key of wonder. Slows me way down to have to take hands off keyboard to fiddle around to right-mouse click every time.

I’ve used various Microsoft ergo keyboards over the last 20 years at the office and needed one when started WFH with my own equipment a few years ago.I have this and also use the logi MX Master 3 mouse.Reading thru the 1-star reviews, I wanted to chime in with a five-star.First off: Ergonomic keyboards take some getting used to. My hands tend to figure it out fine after a week or two. Might take you longer. It also might take you trying a keyboard and returning it to try another if it just doesn’t work well for you.Second: Ease across multiple laptops —> I often am working off BOTH a mac and MS laptop with one connected to a huge widescreen monitor and the other on the side (depends on the work). The Logi Options app that some folks complain about IS FABULOUS. It has a “flow” function that works well when you use both a Logitech mouse and Logitech keyboard - it allows you to move your mouse from one screen to another across your two laptops (yes, even from Mac to a windows laptop) and the mouse and keyboard will automatically recognize your are switching laptops and, thru the magic of software, you are then working on the other laptop. You read that right.Google it if you want more info and more real-life ways folks use this keyboard/mouse combo with the Logitech Flow function to make their life easier working across both a Mac and windows machine.With the flow function set up (both laptops need the app installed and you need to turn it on for both - sometimes again if one goes to sleep… ), you can even copy and paste from one to the other (from the mouse, not keyboard shortcuts… but this is still worth it).Third: Both this keyboard and the MX Master 3 mouse have physical buttons you can pair to up to three different laptops. You literally just push the button (one on mouse, one on keyboard) and - poof!!!! - you are now working on the other laptop.Fourth: The keyboard is labeled for both Mac and windows control/option/command/alt keys. For folks who are heavy keyboard shortcut users (but maybe know either Mac or windows key combos a little better than the other), this is fabulous.Fifth: If you want to program this keyboard to do special stuff, it does it without issue. The Logi Options app walks you thru it. Likewise for the MX Master 3 mouse.I use both this keyboard and mouse hard. I also travel with them (picked up a pair of third-party molded cases for them). I am starting to wear some of the letters off of the keyboard but other than that, both seem to be holding up.For folks also reading thru the one-star reviews of complaints that this keyboard doesn’t do this one special thing that their old favorite keyboard used to do - ok, that’s probably true. For 99.9% of buyers, this keyboard will do great if the buyer takes the time to read thru the guidance provided in the app and/or take a moment to google what it is they are trying to do.For folks who have an old keyboard with programmable functions that they want to ensure this new one does too - might be worth it to jump in and ask a question to other users to see if this does that special thing you really like.Regarding the price - if you work 4-12 hours a day at a computer, the price of this is pretty cheap compared to physical therapy and possible surgery needed from poor ergonomics. Try different keyboards, mice, chair/stool/desk setups until you figure out your ideal setup. Your wrists will thank you later.Pro-tip - The little feet under this keyboard dip out to control the tilt at two additional different heights (so, three height positions total), which might be the adjustment you are looking for if you are trying to get a certain ergonomic alignment.Five stars. Would recommend.

I have tried many, many keyboards. This one seems to work the best for me from an ergonomic standpoint. The bump up in the middle is a bit high, but my hands seem better, after getting used to this style. I like the padded rest below the keyboard. It is made as part of the keyboard, so you can't detach it, but I like that it fits and stays with the keyboard. It has the right amount of padding for your hands.