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Customer Ratings & Reviews

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Customer reviews

Rating 4.5 out of 5 stars with 296 reviews

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Rating by feature

  • Value

    Rating 4.4 out of 5 stars

  • Quality

    Rating 4.5 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

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Cons mentioned filter

92%would recommend to a friend

Customers are saying

Customers value the high-quality build and satisfying key feel of the K840 Mechanical USB Keyboard. They also appreciate its ease of use and find the price reasonable for the features offered. While some wish for RGB lighting, the overall positive feedback highlights the keyboard's excellent performance and value.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 15 Showing 281-296 of 296 reviews
  • Rated 3 out of 5 stars

    I love it, but the Num Lock light stays on all

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Fits Me perfect, but the Num Lock light is on all the time. Can't shut it off.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    it is average

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    it is a fine keyboard. this survey is very frustrating.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    keyboard wasnt what i wanted no lights on keys.but

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    it works fine just cant see at night without lights

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    key actions are glitchy

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    i've had this keyboard for only a year and the key actions started to be flaky and don't work properly, making it difficult to type. as a mechanical keyboard, it is very ergonomic and i've been enjoying using it but at this point and time, with such glitchy key actions, i am very dissapointed by the product.

    No, I would not recommend this to a friend
  • Rated 2 out of 5 stars

    Not for me

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Did not like. Tried it for a week and had to return it.

    No, I would not recommend this to a friend
    • Brand response from Logitech
      Posted .

      Hi Tony, thank you for your feedback! Tested for over 70 million strokes for long-lasting reliability, these Japanese-engineered keys function with a highly responsive and well-defined, light touch. Every keystroke provides a distinct tactile feedback and operates quietly. We have a wide variety of keyboard options for you to choose from. I know we have something else you will prefer. - Will, Logitech.

  • Pros mentioned:
    Keyboard quality

    Rated 5 out of 5 stars

    Good keyboard

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The K840 mechanical keyboard offers a premium typing experience with its durable Romer-G mechanical switches, providing tactile feedback and quiet operation. Its sleek and minimalist design fits well in any workspace, while the customizable function keys allow for enhanced productivity. Whether for work or gaming, the K840 delivers reliable performance and comfort for extended typing sessions.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Watch Out

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bought one day; returned it the next. Made very cheaply. The caps were popping off as I was tying. Very cheaply made.

    No, I would not recommend this to a friend
    • Brand response from Logitech
      Posted .

      Hi Cuba, thank you for your feedback! This should not be the case, as the K840 is backed with a 1-year limited hardware warranty. For support, please refer to: https://support.logi.com/hc/en-us/articles/360024157614 - Will, Logitech.

  • Rated 1 out of 5 stars

    Dead on Arrival

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Num Lock key didn't switch. Cheaper Insignia unit worked fine in same setup. Could be isolated instances.

    No, I would not recommend this to a friend
    • Brand response from Logitech
      Posted .

      Hello, I am sorry to hear about the num lock key not working for you. Luckily, this keyboard comes with a 1 year warranty so we can get that replaced for you! Here is the link to file claim: https://support.logi.com/hc/en-us/articles/360025081553-Warranty-K840-MECHANICAL. I hope this helps! Thank you for taking the time to write this review, we appreciate the feedback.

  • Rated 1 out of 5 stars

    Keys Quit

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I liked this keyboard until the keys quit working. The b,o,l,j, and d would repeat or just not work.

    No, I would not recommend this to a friend
    • Brand response from Logitech
      Posted .

      Hi Bonita!
      I am sorry to hear about your keyboard issues. All Logitech products have a year warranty if you would like to switch out for a new one. I hope this helps!
      -Danielle from Logitech

  • Rated 1 out of 5 stars

    Headache

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I dont like the feeling of a mechanical keyboard. it makes my work more harder

    No, I would not recommend this to a friend
  • Pros mentioned:
    Keyboard quality

    Rated 5 out of 5 stars

    great, but know what you're getting

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    If there's ONE THING I wish I'd known that wasn't in any other review anywhere it's the "ringing" sound this thing makes due to the metal top. It's got a slight metallic ring depending how hard you type. Yes, the space bar has a different sound. May try some way to dampen it somewhat. Not sure yet. Otherwise? It's a good little board. Beats the pants off of anything included with a computer these days. Can see it being decent for games but that's not its primary use for me. Some may prefer responsiveness of other types, but it feels solid enough to do some gaming with. For typing, I'm enjoying it. It'll take some getting used to but I can already tell it's much quicker to type with. Different feel just takes some getting used to like anything. Has a feel unlike most. Light but accurate. Responsive. Far nicer than any stock board. Not as heavy duty as an IBM model M or anything. Not nearly as loud either, obviously, which is really nice. Going from memory, almost like a good ancient Apple keyboard or something. Wish it had a bit of a curve to the rows. That'd be nice. Otherwise, it's not bad. Overall it's a good balance. If you don't like it, you don't like it. Took a chance as I was looking at cherry "brown" keyboards but after seeing a video comparing the sound, I liked the lower tone of this one. Not as bright and high pitched. The key switches themselves are nearly silent. It's when you "bottom out" that makes any sound really. And the space bar does have its different tone. Not generally any louder than a standard keyboard, though obviously louder than the super flat keyboards that I personally don't like very much. If you're on the fence, worst case you just return it. To me, I'm quite happy. Much more enjoyable to type on than a standard keyboard. I'm sure some much prefer "cherry" style switches for many reasons. So far though, I'm not disappointed by this one and their proprietary switches. Feels like it'll last a while and it's better than a standard membrane based keyboard. No idea why they didn't include a num lock light. Pretty strange thing to omit. FN media keys are acceptable, though it'd be nice to have dedicated media keys. For its main purpose of typing, it's a nice piece of gear. If they had an option with angled rows, and maybe a few dedicated media keys, I'd buy that version. As it is, this is a sleeper and a not crazy price. No crazy lights. No crazy design. Just a nice almost boring looking keyboard that's nice to use.

    I would recommend this to a friend
  • Pros mentioned:
    Keyboard quality, Price

    Rated 5 out of 5 stars

    worth it for the price

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    great feeling, just got it today. makes sense for the price. love the product as it is really worth the price. I definitely did not make the mistake of going with romer g switches. love it, thanks logi

    I would recommend this to a friend
  • Pros mentioned:
    Keyboard quality

    Rated 5 out of 5 stars

    QC isn't the best. Switches are similar to MX Red

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    First off I would like to say that there is nothing wrong with this keyboard. I received a perfectly functioning model. I was looking for a key press like what the Cherry MX Blue switches offer and this is 100% not it. The design is very muted, like what you would want if you wanted it on your office desk. It's got nice build quality but I noticed some differences in the feel of some key presses. Overall, its a great keyboard and you won't find another mechanical keyboard that doesn't have disco lights and lasers on it. But I hate this one.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Functional, simple, effective

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Testing testing test one two three. This mechanical keyboard has a significant tensile feedback, I also noticed that there’s this weird ringing noise emitting from beneath the keyboard, similar to the sound made when you wet a finger and rub it against the rim of a crystal glass making the “eeeeeeeeeeeeee” sound. Although you can notice it, it’s so low and quiet that it isn’t a bother. I am currently typing out this review to basically “field-test” this keyboard and see how much of a distraction the ringing noise really is. Other than that ringing noise, keys feel good. The weight of each keystroke seems to be on the lighter side when compared to other mechanical keyboard manufacturers. Ah yes, the keys feel like cherry red keyboards, you have the physical feedback of the key stroke and the noise of each key stroke is audible but isn’t enough to drive you or your loved ones insane. Now the 10-key: 5318008*69696969 1337. Not bad, my KPH is around 12500 just so you have a reference. And lastly, following up on the ringing sound: it is nothing but white noise. If you’re complaining about how annoying the sound is, you should probably go and see an otologist cause yo weak.

    I would recommend this to a friend
  • Pros mentioned:
    Keyboard quality

    Rated 5 out of 5 stars

    Good entry level gaming keyboard

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I didn't want an RGB mechanical board nor did I want to spend a ton of money on one. This was the compromise I found. Keys are great so far and more sensitive than I expected. If I have to complain, I wish the FN (function) button was on the left side instead of the right because that's just what I'm used to on my previous keyboard.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    PM

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    These keyboards don’t last. Bought 2 of them for casual business use, shortly after purchase my wife’s failed, and then mine- to the point they are useless. This process took less than 18months

    No, I would not recommend this to a friend