|Item model number||920-008350|
|Operating System||Windows 8, Windows 7, Windows 10|
|Item Weight||2.01 pounds|
|Product Dimensions||1.35 x 17.52 x 5.2 inches|
|Item Dimensions LxWxH||1.35 x 17.52 x 5.2 inches|
|Batteries||2 AA batteries required.|
|Is Discontinued By Manufacturer||No|
|Date First Available||May 10, 2017|
Logitech K840 Mechanical Keyboard with Romer G mechanical Switches for PC
|Item Dimensions LxWxH||1.35 x 17.52 x 5.2 inches|
|Number of Keys||26|
|Number of Buttons||26|
About this item
- Make sure this fits by entering your model number.
- Exclusive Logitech Romer-G mechanical switches - Japanese engineered mechanical switches provide an expertly-crafted typing experience
- Anodized aluminum - durable and robust construction and design that is made to withstand your most demanding typing sessions
- Easy Access Shortcuts - Get easy access to integrated media and shortcut keys that allow you to control your entertainment
- Programmable Keys - Get more customized control over your productivity with reprogrammable keys. Through Logitech Options, you can reassign your favorite or most useful shortcuts
- Familiar and durable - full-size corded keyboard with 1. 8m cable with built-in strain relief for extra durability and reinforced cable strength
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The quiet operation and responsive tactile feedback you love. The long-lasting durability you demand. The K840 mechanical keyboard features a solid aluminum build with expertly engineered Romer-G mechanical switches tested for 70 million+ strokes. 26-key Rollover helps ensure each keystroke performs accurately and independently as you type. System Requirements: Windows 7 Windows 8 Windows 10 or later|Internet connection for optional software logitech.com/options.|USB port
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Top reviews from the United States
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I didn't need this keyboard per se, but I was tired of the sticking keys and the general mushiness of my aging keyboard. I first bought a G610 with cherry mx brown keys. I hated the key switches. There was about two millimeters of travel before anything happened. I felt the strokes I had to make to type were much longer than normal, and frankly the tactile bump just felt wrong. So I returned it and my search for a new keyboard continued.
I tried out a few other boards at a local blue and yellow electronics store. Cherry reds, blues, browns, some razer boards, and this, the k840 with romer G switches. It's hard to tell how things will feel at your desk by trying to type on the displays, but the romer switches seemed the most familiar. After waiting a while I ordered one because it was on a good sale.
Some people say the romer G are between red and brown switches, with a slight tactile bump near the top of the stroke. I agree. The lack of any bump on the red's felt strange. I wanted some 'buckling' point during the keystroke, and the brown's was all wrong. Some people say that romer G switches feel like rubber dome switches. I disagree. The difference is night and day. This thing feels great to type on. The keys are stable, you can tell when you've pressed them, there is no wobble or mush to be found. The only complaint is that there is sometimes a slight ringing sound when certain keys are pressed (mainly the 'i' key and the spacebar). You will only notice this in a quiet environment. I also find it odd there are no num lock or scroll lock lights, but let's be honest, when was the last time anyone actually used one of those keys?
The keys are pretty quiet for a mechanical keyboard. Another plus. I think the people that like the super loud clicky boards just like the noise, and that the noise does not do anything useful for the typing.
So, if you can get this thing on sale, go for it. If you're looking for something quality, but all the gamery rgb boards and super expensive custom keycap snob boards just don't do it for you, this is likely the keyboard you want. It is a sweet upgrade from ancient rubber dome board. This thing feels well made. It looks nice without shouting. I think logitech has engineered a great key switch that is actually useful for typing and gaming (I've tested both), and not just a gimmick or novelty. It is nice to find it in a not too expensive board.
My only complaint is the Romer-G switches. A lot of people are comparing these to mushy Cherry MX Browns. The mushy part is kind of right; Romer-G feels like there's a preinstalled o-ring on each of the keys so they aren't as loud when they bottom out but they don't really feel mushy to me; just quieter. I would also compare these to Cherry MX Clears. The actuation force, while on paper is the same (or close) to Browns, is noticeably more resistant than all the Brown switched keyboards I use. It's not by a lot but when you're used to the actuation force of Browns, you notice this keyboard is slightly harder to type on. It might need to be broken in or something, but I drop about 10 WPM in my typing on this keyboard brand new out of the box.
Then there's the issue of using uncommon switches: hard to find parts. You can contact Logitech directly I'm sure to get replacements (they'll probably just send you a whole new keyboard) but there are almost zero aftermarket keycaps for the Romer-G switches which is a shame. The ones I did find were for their gaming keyboard that has the odd shaped keys. I do like the sturdier cap mount style (socket with tabs verses Cherry's + peg).
Romer-G switches make a lot of sense for the LED lit keyboards (an LED up the center is far better than an offset LED) but for a professional keyboard like this, they don't have any advantages over Cherry MX switches and are far less customizable.
Update: after using this for weeks I went back to my Das Keyboard with cherry mx browns. The Logitech switches are just too stiff and aren’t as effortless as browns. I was hoping they’d break in but they appear to retain their out of box feeling. Ended up giving it away since it’s too late to return.
Pros: The keyboard looks very professional and the Romer-G keys are quite pleasant. They feel like a mix between Cherry MX browns and reds, slightly less tactile than the browns but not completely linear like the reds. I've also used it a bit for gaming and it feels absolutely fine for that too since Romer-G switches were designed for gaming in the first place.
Cons: Like most mechanical keyboards, it sits relatively high so I would highly recommend using it with a wrist rest otherwise your wrists will get sore quickly and you may get injuries in the long term.
Top reviews from other countries
I've tried various mechanical keyboards in the past. Admittedly, all of my experience is with Cherry MX switches. As I do mostly programming and a bit of gaming, I tended to stray towards blues and browns for the tactile feedback. My daily-driver at home has Cherry MX browns. The lighter tactile feel was preferred over blues, until this keyboard.
I bought this to use at work, and I'm sure it will live up to the task. They keys feel great, and the Romer G switches remind me most of the cherry browns, with a slightly different tactile response reminiscent of dampener rings on the keys. I love the simplicity of this keyboard, and the keys being raised from the bed without an edge or bevel will make it super easy to keep clean. The metal surface and subdued color tones make this keyboard look super classy.
- Great key feel
- Easy to clean deck
- Soft, yet noticable, tactile response on keypress with the Romer G switches
- Not super clacky
- No scroll lock or num lock lights
This keyboard appears to have n-key rollover. Shift+W+Space was tested to register properly, as well as holding down multiple combinations. This is an important feature of a gaming keyboard and exactly what I was looking for.
The thing that surprised me was how easy it is to type on this keyboard. The keys are spaced perfectly, and typing is more like gliding compared to using a membrane keyboard; or the AZIO, for which I had to bash the keys for them to register. Typing actually feels enjoyable like a dance, which is hard to imagine unless you've typed on this keyboard.
I'm very impressed with this keyboard, it feels solid and Logitech seems to have good QC in place, I haven't had an issue with any of their products in the last decade. Highly recommended, it's worth the $100 CAD price tag.
First off, K840 is much better if you type a lot, as the tactile response and shallow depth made it very smooth in moving from one button to another while saving a lot of effort. The shell being aluminum is another plus, a great and stylish choice of color and material over plastic. Some people might find the gap between the keys a bit too large, it might take a little use to but so far not annoying to me.
Now what's bad, the keys themselves. The material is polished plastic, which does make it feel slippery if your hand is too dry. Worse, the key is having a lot of friction if pressed from an angle. For example, in many FPS games, the left ctrl is used a lot and people tends to press it using little finger from an angle, I found it much harder to depress in this case.